78587133127868 has 24 divisors (see below), whose sum is σ = 139889838639600. Its totient is φ = 38618906672768.

The previous prime is 78587133127859. The next prime is 78587133128003. The reversal of 78587133127868 is 86872133178587.

It is a super-2 number, since 2×78587133127868² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78587133127795 and 78587133127804.

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, 36304703 + ... + 38408406.

It is an arithmetic number, because the mean of its divisors is an integer number (5828743276650).

Almost surely, 2^{78587133127868} is an apocalyptic number.

It is an amenable number.

78587133127868 is a deficient number, since it is larger than the sum of its proper divisors (61302705511732).

78587133127868 is a wasteful number, since it uses less digits than its factorization.

78587133127868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74717629 (or 74717627 counting only the distinct ones).

The product of its digits is 758661120, while the sum is 74.

The spelling of 78587133127868 in words is "seventy-eight trillion, five hundred eighty-seven billion, one hundred thirty-three million, one hundred twenty-seven thousand, eight hundred sixty-eight".