78611678080 has 256 divisors, whose sum is σ = 214263403200. Its totient is φ = 27369603072.

The previous prime is 78611678029. The next prime is 78611678141. The reversal of 78611678080 is 8087611687.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10371252 + ... + 10378828.

Almost surely, 2^78611678080 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 78611678080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107131701600).

78611678080 is an abundant number, since it is smaller than the sum of its proper divisors (135651725120).

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

78611678080 is a wasteful number, since it uses less digits than its factorization.

78611678080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7681 (or 7669 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 52.

The spelling of 78611678080 in words is "seventy-eight billion, six hundred eleven million, six hundred seventy-eight thousand, eighty".