77788878818114 has 16 divisors (see below), whose sum is σ = 116970777424440. Its totient is φ = 38798623205760.

The previous prime is 77788878818089. The next prime is 77788878818141. The reversal of 77788878818114 is 41181887888777.

It can be written as a sum of positive squares in 4 ways, for example, as 66711078259225 + 11077800558889 = 8167685^2 + 3328333^2 .

It is a super-2 number, since 2×77788878818114² (a number of 29 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, 44676452 + ... + 46384944.

Almost surely, 2^{77788878818114} is an apocalyptic number.

77788878818114 is a deficient number, since it is larger than the sum of its proper divisors (39181898606326).

77788878818114 is a wasteful number, since it uses less digits than its factorization.

77788878818114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764565.

The product of its digits is 2517630976, while the sum is 83.

The spelling of 77788878818114 in words is "seventy-seven trillion, seven hundred eighty-eight billion, eight hundred seventy-eight million, eight hundred eighteen thousand, one hundred fourteen".