31071086425 has 6 divisors (see below), whose sum is σ = 38528147198. Its totient is φ = 24856869120.

The previous prime is 31071086383. The next prime is 31071086567. The reversal of 31071086425 is 52468017013.

It can be written as a sum of positive squares in 3 ways, for example, as 10480845376 + 20590241049 = 102376^2 + 143493^2 .

It is not a de Polignac number, because 31071086425 - 2¹⁹ = 31070562137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 621421704 + ... + 621421753.

Almost surely, 2^31071086425 is an apocalyptic number.

It is an amenable number.

31071086425 is a deficient number, since it is larger than the sum of its proper divisors (7457060773).

31071086425 is a wasteful number, since it uses less digits than its factorization.

31071086425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242843467 (or 1242843462 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 31071086425 in words is "thirty-one billion, seventy-one million, eighty-six thousand, four hundred twenty-five".