77138514282368 has 64 divisors (see below), whose sum is σ = 191594037121920. Its totient is φ = 30053966599680.

The previous prime is 77138514282343. The next prime is 77138514282371. The reversal of 77138514282368 is 86328241583177.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 3913267046 + ... + 3913286757.

It is an arithmetic number, because the mean of its divisors is an integer number (2993656830030).

Almost surely, 2^{77138514282368} is an apocalyptic number.

It is an amenable number.

77138514282368 is an abundant number, since it is smaller than the sum of its proper divisors (114455522839552).

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

77138514282368 is a wasteful number, since it uses less digits than its factorization.

77138514282368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7826553835 (or 7826553823 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 65.

The spelling of 77138514282368 in words is "seventy-seven trillion, one hundred thirty-eight billion, five hundred fourteen million, two hundred eighty-two thousand, three hundred sixty-eight".