78838781304 has 32 divisors (see below), whose sum is σ = 197119826640. Its totient is φ = 26276544000.

The previous prime is 78838781299. The next prime is 78838781339. The reversal of 78838781304 is 40318783887.

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 7 ways as a sum of consecutive naturals, for example, 25504 + ... + 397904.

Almost surely, 2^78838781304 is an apocalyptic number.

It is an amenable number.

78838781304 is an abundant number, since it is smaller than the sum of its proper divisors (118281045336).

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

78838781304 is a wasteful number, since it uses less digits than its factorization.

78838781304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381231 (or 381227 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 57.

The spelling of 78838781304 in words is "seventy-eight billion, eight hundred thirty-eight million, seven hundred eighty-one thousand, three hundred four".