78719408810 has 32 divisors (see below), whose sum is σ = 161953126272. Its totient is φ = 26986835520.

The previous prime is 78719408797. The next prime is 78719408813. The reversal of 78719408810 is 1880491787.

It is a super-2 number, since 2×78719408810² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78719408813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 734765 + ... + 835055.

It is an arithmetic number, because the mean of its divisors is an integer number (5061035196).

Almost surely, 2^78719408810 is an apocalyptic number.

78719408810 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

78719408810 is an abundant number, since it is smaller than the sum of its proper divisors (83233717462).

78719408810 is a wasteful number, since it uses less digits than its factorization.

78719408810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111518.

The product of its (nonzero) digits is 903168, while the sum is 53.

The spelling of 78719408810 in words is "seventy-eight billion, seven hundred nineteen million, four hundred eight thousand, eight hundred ten".