76897711109956 has 81 divisors (see below), whose sum is σ = 148738171945503. Its totient is φ = 34760496410640.

The previous prime is 76897711109939. The next prime is 76897711109963. The reversal of 76897711109956 is 65990111779867.

The square root of 76897711109956 is 8769134.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 38391267651 + ... + 38391269653.

Almost surely, 2^{76897711109956} is an apocalyptic number.

76897711109956 is the 8769134-th square number.

It is an amenable number.

76897711109956 is a deficient number, since it is larger than the sum of its proper divisors (71840460835547).

76897711109956 is an equidigital number, since it uses as much as digits as its factorization.

76897711109956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430 (or 2215 counting only the distinct ones).

The product of its (nonzero) digits is 360067680, while the sum is 76.

The spelling of 76897711109956 in words is "seventy-six trillion, eight hundred ninety-seven billion, seven hundred eleven million, one hundred nine thousand, nine hundred fifty-six".