78159514044 has 24 divisors (see below), whose sum is σ = 182377617408. Its totient is φ = 26052397360.

The previous prime is 78159514039. The next prime is 78159514087. The reversal of 78159514044 is 44041595187.

It is a super-2 number, since 2×78159514044² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78159513984 and 78159514002.

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, 445639 + ... + 595745.

It is an arithmetic number, because the mean of its divisors is an integer number (7599067392).

Almost surely, 2^78159514044 is an apocalyptic number.

It is an amenable number.

78159514044 is an abundant number, since it is smaller than the sum of its proper divisors (104218103364).

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

78159514044 is a wasteful number, since it uses less digits than its factorization.

78159514044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193505 (or 193503 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 78159514044 in words is "seventy-eight billion, one hundred fifty-nine million, five hundred fourteen thousand, forty-four".