31407659425 has 12 divisors (see below), whose sum is σ = 39331099836. Its totient is φ = 24877352000.

The previous prime is 31407659417. The next prime is 31407659429. The reversal of 31407659425 is 52495670413.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5917301776 + 25490357649 = 76924^2 + 159657^2 .

It is not a de Polignac number, because 31407659425 - 2³ = 31407659417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31407659429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6216814 + ... + 6221863.

It is an arithmetic number, because the mean of its divisors is an integer number (3277591653).

Almost surely, 2^31407659425 is an apocalyptic number.

It is an amenable number.

31407659425 is a deficient number, since it is larger than the sum of its proper divisors (7923440411).

31407659425 is a wasteful number, since it uses less digits than its factorization.

31407659425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12438788 (or 12438783 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 31407659425 in words is "thirty-one billion, four hundred seven million, six hundred fifty-nine thousand, four hundred twenty-five".