77550823680 has 144 divisors (see below), whose sum is σ = 270194266944. Its totient is φ = 18800189440.

The previous prime is 77550823673. The next prime is 77550823709. The reversal of 77550823680 is 8632805577.

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 15 ways as a sum of consecutive naturals, for example, 875739 + ... + 960218.

It is an arithmetic number, because the mean of its divisors is an integer number (1876349076).

Almost surely, 2^77550823680 is an apocalyptic number.

It is an amenable number.

77550823680 is an abundant number, since it is smaller than the sum of its proper divisors (192643443264).

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

77550823680 is a wasteful number, since it uses less digits than its factorization.

77550823680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835992 (or 1835978 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 77550823680 in words is "seventy-seven billion, five hundred fifty million, eight hundred twenty-three thousand, six hundred eighty".