77916881700 has 108 divisors (see below), whose sum is σ = 279115607680. Its totient is φ = 17809571520.

The previous prime is 77916881621. The next prime is 77916881719. The reversal of 77916881700 is 718861977.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6177580 + ... + 6190179.

Almost surely, 2^77916881700 is an apocalyptic number.

77916881700 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

77916881700 is an abundant number, since it is smaller than the sum of its proper divisors (201198725980).

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

77916881700 is a wasteful number, since it uses less digits than its factorization.

77916881700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12367786 (or 12367776 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 54.

The spelling of 77916881700 in words is "seventy-seven billion, nine hundred sixteen million, eight hundred eighty-one thousand, seven hundred".