31274402045 has 16 divisors (see below), whose sum is σ = 37937231280. Its totient is φ = 24748032000.

The previous prime is 31274402039. The next prime is 31274402057. The reversal of 31274402045 is 54020447213.

It can be written as a sum of positive squares in 8 ways, for example, as 3143732761 + 28130669284 = 56069^2 + 167722^2 .

It is not a de Polignac number, because 31274402045 - 2⁶ = 31274401981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506621 + ... + 564989.

It is an arithmetic number, because the mean of its divisors is an integer number (2371076955).

Almost surely, 2^31274402045 is an apocalyptic number.

It is an amenable number.

31274402045 is a deficient number, since it is larger than the sum of its proper divisors (6662829235).

31274402045 is a wasteful number, since it uses less digits than its factorization.

31274402045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59536.

The product of its (nonzero) digits is 26880, while the sum is 32.

Adding to 31274402045 its reverse (54020447213), we get a palindrome (85294849258).

The spelling of 31274402045 in words is "thirty-one billion, two hundred seventy-four million, four hundred two thousand, forty-five".