8915503961 has 16 divisors (see below), whose sum is σ = 11450014464. Its totient is φ = 6747326784.

The previous prime is 8915503957. The next prime is 8915503963. The reversal of 8915503961 is 1693055198.

It is a cyclic number.

It is not a de Polignac number, because 8915503961 - 2² = 8915503957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8915503963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2127746 + ... + 2131931.

It is an arithmetic number, because the mean of its divisors is an integer number (715625904).

Almost surely, 2^8915503961 is an apocalyptic number.

It is an amenable number.

8915503961 is a deficient number, since it is larger than the sum of its proper divisors (2534510503).

8915503961 is a wasteful number, since it uses less digits than its factorization.

8915503961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4259720.

The product of its (nonzero) digits is 291600, while the sum is 47.

The square root of 8915503961 is about 94421.9463948928. The cubic root of 8915503961 is about 2073.5537576782.

The spelling of 8915503961 in words is "eight billion, nine hundred fifteen million, five hundred three thousand, nine hundred sixty-one".