78837759387 has 24 divisors (see below), whose sum is σ = 119061540000. Its totient is φ = 50174517888.

The previous prime is 78837759353. The next prime is 78837759419. The reversal of 78837759387 is 78395773887.

It is not a de Polignac number, because 78837759387 - 2³⁵ = 44478021019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78837759487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268762 + ... + 479487.

It is an arithmetic number, because the mean of its divisors is an integer number (4960897500).

Almost surely, 2^78837759387 is an apocalyptic number.

78837759387 is a deficient number, since it is larger than the sum of its proper divisors (40223780613).

78837759387 is a wasteful number, since it uses less digits than its factorization.

78837759387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748787 (or 748784 counting only the distinct ones).

The product of its digits is 497871360, while the sum is 72.

The spelling of 78837759387 in words is "seventy-eight billion, eight hundred thirty-seven million, seven hundred fifty-nine thousand, three hundred eighty-seven".