78587133852 has 24 divisors (see below), whose sum is σ = 187634398336. Its totient is φ = 25586508528.

The previous prime is 78587133839. The next prime is 78587133857. The reversal of 78587133852 is 25833178587.

It is a junction number, because it is equal to n+sod(n) for n = 78587133792 and 78587133801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78587133857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76149808 + ... + 76150839.

Almost surely, 2^78587133852 is an apocalyptic number.

It is an amenable number.

78587133852 is an abundant number, since it is smaller than the sum of its proper divisors (109047264484).

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

78587133852 is a wasteful number, since it uses less digits than its factorization.

78587133852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152300697 (or 152300695 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 57.

The spelling of 78587133852 in words is "seventy-eight billion, five hundred eighty-seven million, one hundred thirty-three thousand, eight hundred fifty-two".