78836938352 has 10 divisors (see below), whose sum is σ = 152746568088. Its totient is φ = 39418469168.

The previous prime is 78836938351. The next prime is 78836938361. The reversal of 78836938352 is 25383963887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78836938351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2463654308 + ... + 2463654339.

Almost surely, 2^78836938352 is an apocalyptic number.

It is an amenable number.

78836938352 is a deficient number, since it is larger than the sum of its proper divisors (73909629736).

78836938352 is a wasteful number, since it uses less digits than its factorization.

78836938352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4927308655 (or 4927308649 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 62.

The spelling of 78836938352 in words is "seventy-eight billion, eight hundred thirty-six million, nine hundred thirty-eight thousand, three hundred fifty-two".