9977831882794 has 16 divisors (see below), whose sum is σ = 14986507739400. Its totient is φ = 4982329647360.

The previous prime is 9977831882737. The next prime is 9977831882857. The reversal of 9977831882794 is 4972881387799.

It can be written as a sum of positive squares in 4 ways, for example, as 5201478455625 + 4776353427169 = 2280675^2 + 2185487^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86284774 + ... + 86400334.

Almost surely, 2^{9977831882794} is an apocalyptic number.

9977831882794 is a deficient number, since it is larger than the sum of its proper divisors (5008675856606).

9977831882794 is a wasteful number, since it uses less digits than its factorization.

9977831882794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172185.

The product of its digits is 3072577536, while the sum is 82.

The spelling of 9977831882794 in words is "nine trillion, nine hundred seventy-seven billion, eight hundred thirty-one million, eight hundred eighty-two thousand, seven hundred ninety-four".