78183370506 has 16 divisors (see below), whose sum is σ = 156900419424. Its totient is φ = 25972177104.

The previous prime is 78183370451. The next prime is 78183370519. The reversal of 78183370506 is 60507338187.

It is a super-2 number, since 2×78183370506² (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, 22234696 + ... + 22238211.

It is an arithmetic number, because the mean of its divisors is an integer number (9806276214).

Almost surely, 2^78183370506 is an apocalyptic number.

78183370506 is an abundant number, since it is smaller than the sum of its proper divisors (78717048918).

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

78183370506 is a wasteful number, since it uses less digits than its factorization.

78183370506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44473205.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 78183370506 in words is "seventy-eight billion, one hundred eighty-three million, three hundred seventy thousand, five hundred six".