31473364725 has 48 divisors (see below), whose sum is σ = 63073909440. Its totient is φ = 15259809600.

The previous prime is 31473364661. The next prime is 31473364757. The reversal of 31473364725 is 52746337413.

31473364725 is a `hidden beast` number, since 3 + 147 + 3 + 36 + 472 + 5 = 666.

It is not a de Polignac number, because 31473364725 - 2⁶ = 31473364661 is a prime.

It is a super-2 number, since 2×31473364725² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2111994 + ... + 2126843.

It is an arithmetic number, because the mean of its divisors is an integer number (1314039780).

Almost surely, 2^31473364725 is an apocalyptic number.

It is an amenable number.

31473364725 is an abundant number, since it is smaller than the sum of its proper divisors (31600544715).

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

31473364725 is a wasteful number, since it uses less digits than its factorization.

31473364725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238867 (or 4238856 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 45.

The spelling of 31473364725 in words is "thirty-one billion, four hundred seventy-three million, three hundred sixty-four thousand, seven hundred twenty-five".