31425074536 has 16 divisors (see below), whose sum is σ = 58999862340. Its totient is φ = 15691777920.

The previous prime is 31425074531. The next prime is 31425074537. The reversal of 31425074536 is 63547052413.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26632281636 + 4792792900 = 163194^2 + 69230^2 .

It is not an unprimeable number, because it can be changed into a prime (31425074531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2588485 + ... + 2600596.

Almost surely, 2^31425074536 is an apocalyptic number.

It is an amenable number.

31425074536 is a deficient number, since it is larger than the sum of its proper divisors (27574787804).

31425074536 is a wasteful number, since it uses less digits than its factorization.

31425074536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5189844 (or 5189840 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 31425074536 in words is "thirty-one billion, four hundred twenty-five million, seventy-four thousand, five hundred thirty-six".