78540180776124 has 24 divisors (see below), whose sum is σ = 184474066992768. Its totient is φ = 26006682375600.

The previous prime is 78540180776117. The next prime is 78540180776149. The reversal of 78540180776124 is 42167708104587.

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, 21672233502 + ... + 21672237125.

It is an arithmetic number, because the mean of its divisors is an integer number (7686419458032).

Almost surely, 2^{78540180776124} is an apocalyptic number.

It is an amenable number.

78540180776124 is an abundant number, since it is smaller than the sum of its proper divisors (105933886216644).

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

78540180776124 is a wasteful number, since it uses less digits than its factorization.

78540180776124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43344470785 (or 43344470783 counting only the distinct ones).

The product of its (nonzero) digits is 21073920, while the sum is 60.

The spelling of 78540180776124 in words is "seventy-eight trillion, five hundred forty billion, one hundred eighty million, seven hundred seventy-six thousand, one hundred twenty-four".