78784938008 has 16 divisors (see below), whose sum is σ = 168824867280. Its totient is φ = 33764973408.

The previous prime is 78784937993. The next prime is 78784938031. The reversal of 78784938008 is 80083948787.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703436891 + ... + 703437002.

It is an arithmetic number, because the mean of its divisors is an integer number (10551554205).

Almost surely, 2^78784938008 is an apocalyptic number.

It is an amenable number.

78784938008 is an abundant number, since it is smaller than the sum of its proper divisors (90039929272).

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

78784938008 is a wasteful number, since it uses less digits than its factorization.

78784938008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406873906 (or 1406873902 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 62.

The spelling of 78784938008 in words is "seventy-eight billion, seven hundred eighty-four million, nine hundred thirty-eight thousand, eight".