31826457045 has 24 divisors (see below), whose sum is σ = 55172957112. Its totient is φ = 16971926400.

The previous prime is 31826457041. The next prime is 31826457079. The reversal of 31826457045 is 54075462813.

31826457045 is a `hidden beast` number, since 3 + 18 + 2 + 64 + 570 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1830641796 + 29995815249 = 42786^2 + 173193^2 .

It is not a de Polignac number, because 31826457045 - 2² = 31826457041 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31826457041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 344935 + ... + 427355.

It is an arithmetic number, because the mean of its divisors is an integer number (2298873213).

Almost surely, 2^31826457045 is an apocalyptic number.

It is an amenable number.

31826457045 is a deficient number, since it is larger than the sum of its proper divisors (23346500067).

31826457045 is a wasteful number, since it uses less digits than its factorization.

31826457045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91013 (or 91010 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 31826457045 in words is "thirty-one billion, eight hundred twenty-six million, four hundred fifty-seven thousand, forty-five".