78311184044 has 24 divisors (see below), whose sum is σ = 137708941440. Its totient is φ = 38965936896.

The previous prime is 78311184031. The next prime is 78311184101. The reversal of 78311184044 is 44048111387.

It is a super-2 number, since 2×78311184044² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78311183992 and 78311184010.

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, 2002244 + ... + 2040980.

It is an arithmetic number, because the mean of its divisors is an integer number (5737872560).

Almost surely, 2^78311184044 is an apocalyptic number.

It is an amenable number.

78311184044 is a deficient number, since it is larger than the sum of its proper divisors (59397757396).

78311184044 is a wasteful number, since it uses less digits than its factorization.

78311184044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41177 (or 41175 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The spelling of 78311184044 in words is "seventy-eight billion, three hundred eleven million, one hundred eighty-four thousand, forty-four".