11956864025 has 6 divisors (see below), whose sum is σ = 14826511422. Its totient is φ = 9565491200.

The previous prime is 11956864013. The next prime is 11956864057. The reversal of 11956864025 is 52046865911.

It can be written as a sum of positive squares in 3 ways, for example, as 1651365769 + 10305498256 = 40637^2 + 101516^2 .

It is not a de Polignac number, because 11956864025 - 2⁸ = 11956863769 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, 239137256 + ... + 239137305.

It is an arithmetic number, because the mean of its divisors is an integer number (2471085237).

Almost surely, 2^11956864025 is an apocalyptic number.

It is an amenable number.

11956864025 is a deficient number, since it is larger than the sum of its proper divisors (2869647397).

11956864025 is an equidigital number, since it uses as much as digits as its factorization.

11956864025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478274571 (or 478274566 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 11956864025 in words is "eleven billion, nine hundred fifty-six million, eight hundred sixty-four thousand, twenty-five".