31744097425 has 6 divisors (see below), whose sum is σ = 39362680838. Its totient is φ = 25395277920.

The previous prime is 31744097353. The next prime is 31744097431. The reversal of 31744097425 is 52479044713.

It can be written as a sum of positive squares in 3 ways, for example, as 4890065041 + 26854032384 = 69929^2 + 163872^2 .

It is a de Polignac number, because none of the positive numbers 2^k-31744097425 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 634881924 + ... + 634881973.

Almost surely, 2^31744097425 is an apocalyptic number.

It is an amenable number.

31744097425 is a deficient number, since it is larger than the sum of its proper divisors (7618583413).

31744097425 is a wasteful number, since it uses less digits than its factorization.

31744097425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269763907 (or 1269763902 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 31744097425 in words is "thirty-one billion, seven hundred forty-four million, ninety-seven thousand, four hundred twenty-five".