77979176384 has 14 divisors (see below), whose sum is σ = 154739928264. Its totient is φ = 38989588160.

The previous prime is 77979176383. The next prime is 77979176467. The reversal of 77979176384 is 48367197977.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77979176383) by changing a digit.

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 as a sum of consecutive naturals, namely, 609212252 + ... + 609212379.

Almost surely, 2^77979176384 is an apocalyptic number.

It is an amenable number.

77979176384 is a deficient number, since it is larger than the sum of its proper divisors (76760751880).

77979176384 is a wasteful number, since it uses less digits than its factorization.

77979176384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218424643 (or 1218424633 counting only the distinct ones).

The product of its digits is 112021056, while the sum is 68.

The spelling of 77979176384 in words is "seventy-seven billion, nine hundred seventy-nine million, one hundred seventy-six thousand, three hundred eighty-four".