9925976826 has 24 divisors (see below), whose sum is σ = 21728001204. Its totient is φ = 3274548480.

The previous prime is 9925976803. The next prime is 9925976843. The reversal of 9925976826 is 6286795299.

It can be written as a sum of positive squares in 2 ways, for example, as 9350696601 + 575280225 = 96699^2 + 23985^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2840745 + ... + 2844236.

Almost surely, 2^9925976826 is an apocalyptic number.

9925976826 is an abundant number, since it is smaller than the sum of its proper divisors (11802024378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9925976826 is a wasteful number, since it uses less digits than its factorization.

9925976826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685086 (or 5685083 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 63.

The square root of 9925976826 is about 99629.1966543944. The cubic root of 9925976826 is about 2149.1055826089.

The spelling of 9925976826 in words is "nine billion, nine hundred twenty-five million, nine hundred seventy-six thousand, eight hundred twenty-six".