78880801715 has 16 divisors (see below), whose sum is σ = 95896555776. Its totient is φ = 62279820000.

The previous prime is 78880801709. The next prime is 78880801723. The reversal of 78880801715 is 51710808887.

It is not a de Polignac number, because 78880801715 - 2²⁶ = 78813692851 is a prime.

It is a super-2 number, since 2×78880801715² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305090 + ... + 500840.

It is an arithmetic number, because the mean of its divisors is an integer number (5993534736).

Almost surely, 2^78880801715 is an apocalyptic number.

78880801715 is a deficient number, since it is larger than the sum of its proper divisors (17015754061).

78880801715 is a wasteful number, since it uses less digits than its factorization.

78880801715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196810.

The product of its (nonzero) digits is 1003520, while the sum is 53.

The spelling of 78880801715 in words is "seventy-eight billion, eight hundred eighty million, eight hundred one thousand, seven hundred fifteen".