31423769695368 has 108 divisors (see below), whose sum is σ = 90409091795295. Its totient is φ = 9858183866880.

The previous prime is 31423769695361. The next prime is 31423769695421. The reversal of 31423769695368 is 86359696732413.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

31423769695368 is a `hidden beast` number, since 3 + 1 + 4 + 23 + 7 + 6 + 9 + 69 + 536 + 8 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 31304897826084 + 118871869284 = 5595078^2 + 344778^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3963822.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 31423769695296 and 31423769695305.

It is not an unprimeable number, because it can be changed into a prime (31423769695361) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 808600258 + ... + 808639118.

Almost surely, 2^{31423769695368} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31423769695368

31423769695368 is an abundant number, since it is smaller than the sum of its proper divisors (58985322099927).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31423769695368 is an frugal number, since it uses more digits than its factorization.

31423769695368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77768 (or 38883 counting only the distinct ones).

The product of its digits is 1058158080, while the sum is 72.

31423769695368 divided by its sum of digits (72) gives a square (436441245769 = 660637²).

The spelling of 31423769695368 in words is "thirty-one trillion, four hundred twenty-three billion, seven hundred sixty-nine million, six hundred ninety-five thousand, three hundred sixty-eight".