9961450875 has 192 divisors, whose sum is σ = 19624550400. Its totient is φ = 5034960000.

The previous prime is 9961450847. The next prime is 9961450913. The reversal of 9961450875 is 5780541699.

9961450875 is a `hidden beast` number, since 9 + 9 + 61 + 4 + 508 + 75 = 666.

It is not a de Polignac number, because 9961450875 - 2⁸ = 9961450619 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 66855301 + ... + 66855449.

It is an arithmetic number, because the mean of its divisors is an integer number (102211200).

Almost surely, 2^9961450875 is an apocalyptic number.

9961450875 is a deficient number, since it is larger than the sum of its proper divisors (9663099525).

9961450875 is a wasteful number, since it uses less digits than its factorization.

9961450875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The square root of 9961450875 is about 99807.0682617218. The cubic root of 9961450875 is about 2151.6627393599.

The spelling of 9961450875 in words is "nine billion, nine hundred sixty-one million, four hundred fifty thousand, eight hundred seventy-five".