76638938718 has 8 divisors (see below), whose sum is σ = 153277877448. Its totient is φ = 25546312904.

The previous prime is 76638938689. The next prime is 76638938741. The reversal of 76638938718 is 81783983667.

It is a sphenic number, since it is the product of 3 distinct primes.

76638938718 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6386578221 + ... + 6386578232.

It is an arithmetic number, because the mean of its divisors is an integer number (19159734681).

Almost surely, 2^76638938718 is an apocalyptic number.

76638938718 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

76638938718 is a wasteful number, since it uses less digits than its factorization.

76638938718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12773156458.

The product of its digits is 73156608, while the sum is 66.

The spelling of 76638938718 in words is "seventy-six billion, six hundred thirty-eight million, nine hundred thirty-eight thousand, seven hundred eighteen".