9625512961 has 4 divisors (see below), whose sum is σ = 9654075652. Its totient is φ = 9596950272.

The previous prime is 9625512913. The next prime is 9625512971. The reversal of 9625512961 is 1692155269.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4536830736 + 5088682225 = 67356^2 + 71335^2 .

It is a cyclic number.

It is not a de Polignac number, because 9625512961 - 2³¹ = 7478029313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9625512971) 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, 14280840 + ... + 14281513.

It is an arithmetic number, because the mean of its divisors is an integer number (2413518913).

Almost surely, 2^9625512961 is an apocalyptic number.

It is an amenable number.

9625512961 is a deficient number, since it is larger than the sum of its proper divisors (28562691).

9625512961 is a wasteful number, since it uses less digits than its factorization.

9625512961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28562690.

The product of its digits is 291600, while the sum is 46.

The square root of 9625512961 is about 98109.6986082416. The cubic root of 9625512961 is about 2127.1982206427.

The spelling of 9625512961 in words is "nine billion, six hundred twenty-five million, five hundred twelve thousand, nine hundred sixty-one".