78501514623828 has 48 divisors (see below), whose sum is σ = 199459383816000. Its totient is φ = 23935126053888.

The previous prime is 78501514623773. The next prime is 78501514623841. The reversal of 78501514623828 is 82832641510587.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5936284573 + ... + 5936297796.

It is an arithmetic number, because the mean of its divisors is an integer number (4155403829500).

Almost surely, 2^{78501514623828} is an apocalyptic number.

It is an amenable number.

78501514623828 is an abundant number, since it is smaller than the sum of its proper divisors (120957869192172).

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

78501514623828 is a wasteful number, since it uses less digits than its factorization.

78501514623828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11872582424 (or 11872582422 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 60.

The spelling of 78501514623828 in words is "seventy-eight trillion, five hundred one billion, five hundred fourteen million, six hundred twenty-three thousand, eight hundred twenty-eight".