78676581888 has 120 divisors (see below), whose sum is σ = 228322870776. Its totient is φ = 26080358400.

The previous prime is 78676581887. The next prime is 78676581901. The reversal of 78676581888 is 88818567687.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78676581887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 786883 + ... + 881213.

Almost surely, 2^78676581888 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 78676581888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114161435388).

78676581888 is an abundant number, since it is smaller than the sum of its proper divisors (149646288888).

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

78676581888 is a wasteful number, since it uses less digits than its factorization.

78676581888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94536 (or 94517 counting only the distinct ones).

The product of its digits is 289013760, while the sum is 72.

The spelling of 78676581888 in words is "seventy-eight billion, six hundred seventy-six million, five hundred eighty-one thousand, eight hundred eighty-eight".