78103307264 has 88 divisors (see below), whose sum is σ = 172502949888. Its totient is φ = 35156295680.

The previous prime is 78103307237. The next prime is 78103307279. The reversal of 78103307264 is 46270330187.

It is a super-2 number, since 2×78103307264² (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, 302849 + ... + 497919.

Almost surely, 2^78103307264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78103307264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86251474944).

78103307264 is an abundant number, since it is smaller than the sum of its proper divisors (94399642624).

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

78103307264 is a wasteful number, since it uses less digits than its factorization.

78103307264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195131 (or 195113 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 78103307264 in words is "seventy-eight billion, one hundred three million, three hundred seven thousand, two hundred sixty-four".