78887334736 has 40 divisors (see below), whose sum is σ = 179400164480. Its totient is φ = 32895103104.

The previous prime is 78887334707. The next prime is 78887334749. The reversal of 78887334736 is 63743378887.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9514116 + ... + 9522403.

It is an arithmetic number, because the mean of its divisors is an integer number (4485004112).

Almost surely, 2^78887334736 is an apocalyptic number.

It is an amenable number.

78887334736 is an abundant number, since it is smaller than the sum of its proper divisors (100512829744).

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

78887334736 is a wasteful number, since it uses less digits than its factorization.

78887334736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19036571 (or 19036565 counting only the distinct ones).

The product of its digits is 113799168, while the sum is 64.

The spelling of 78887334736 in words is "seventy-eight billion, eight hundred eighty-seven million, three hundred thirty-four thousand, seven hundred thirty-six".