78169059052 has 24 divisors (see below), whose sum is σ = 156648957696. Its totient is φ = 33434416848.

The previous prime is 78169059049. The next prime is 78169059077. The reversal of 78169059052 is 25095096187.

It is a super-2 number, since 2×78169059052² (a number of 23 digits) contains 22 as substring.

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, 2761018 + ... + 2789185.

It is an arithmetic number, because the mean of its divisors is an integer number (6527039904).

Almost surely, 2^78169059052 is an apocalyptic number.

It is an amenable number.

78169059052 is an abundant number, since it is smaller than the sum of its proper divisors (78479898644).

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

78169059052 is a wasteful number, since it uses less digits than its factorization.

78169059052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550717 (or 5550715 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 52.

The spelling of 78169059052 in words is "seventy-eight billion, one hundred sixty-nine million, fifty-nine thousand, fifty-two".