9256261512961 has 4 divisors (see below), whose sum is σ = 9257862117312. Its totient is φ = 9254660908612.

The previous prime is 9256261512947. The next prime is 9256261512989. The reversal of 9256261512961 is 1692151626529.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9256261512961 - 2⁵ = 9256261512929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9256261512161) 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, 800293501 + ... + 800305066.

It is an arithmetic number, because the mean of its divisors is an integer number (2314465529328).

Almost surely, 2^{9256261512961} is an apocalyptic number.

It is an amenable number.

9256261512961 is a deficient number, since it is larger than the sum of its proper divisors (1600604351).

9256261512961 is a wasteful number, since it uses less digits than its factorization.

9256261512961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600604350.

The product of its digits is 3499200, while the sum is 55.

The spelling of 9256261512961 in words is "nine trillion, two hundred fifty-six billion, two hundred sixty-one million, five hundred twelve thousand, nine hundred sixty-one".