76921913104 has 15 divisors (see below), whose sum is σ = 149038356117. Its totient is φ = 38460401856.

The previous prime is 76921913099. The next prime is 76921913177. The reversal of 76921913104 is 40131912967.

The square root of 76921913104 is 277348.

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

It can be written as a sum of positive squares in only one way, i.e., 39577123600 + 37344789504 = 198940^2 + 193248^2 .

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 2 ways as a sum of consecutive naturals, for example, 1074724 + ... + 1144060.

Almost surely, 2^76921913104 is an apocalyptic number.

76921913104 is the 277348-th square number.

It is an amenable number.

76921913104 is a deficient number, since it is larger than the sum of its proper divisors (72116443013).

76921913104 is an frugal number, since it uses more digits than its factorization.

76921913104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138682 (or 69339 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

It can be divided in two parts, 76921 and 913104, that added together give a square (990025 = 995²).

The spelling of 76921913104 in words is "seventy-six billion, nine hundred twenty-one million, nine hundred thirteen thousand, one hundred four".