78514738768 has 20 divisors (see below), whose sum is σ = 160128744160. Its totient is φ = 37191191904.

The previous prime is 78514738727. The next prime is 78514738777. The reversal of 78514738768 is 86783741587.

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 3 ways as a sum of consecutive naturals, for example, 129135780 + ... + 129136387.

It is an arithmetic number, because the mean of its divisors is an integer number (8006437208).

Almost surely, 2^78514738768 is an apocalyptic number.

It is an amenable number.

78514738768 is an abundant number, since it is smaller than the sum of its proper divisors (81614005392).

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

78514738768 is a wasteful number, since it uses less digits than its factorization.

78514738768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258272194 (or 258272188 counting only the distinct ones).

The product of its digits is 63221760, while the sum is 64.

The spelling of 78514738768 in words is "seventy-eight billion, five hundred fourteen million, seven hundred thirty-eight thousand, seven hundred sixty-eight".