77311139944142 has 96 divisors (see below), whose sum is σ = 127705558780800. Its totient is φ = 34893903384576.

The previous prime is 77311139944127. The next prime is 77311139944147. The reversal of 77311139944142 is 24144993111377.

77311139944142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77311139944147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18025444334 + ... + 18025448622.

It is an arithmetic number, because the mean of its divisors is an integer number (1330266237300).

Almost surely, 2^{77311139944142} is an apocalyptic number.

77311139944142 is a deficient number, since it is larger than the sum of its proper divisors (50394418836658).

77311139944142 is a wasteful number, since it uses less digits than its factorization.

77311139944142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5418 (or 5359 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 56.

The spelling of 77311139944142 in words is "seventy-seven trillion, three hundred eleven billion, one hundred thirty-nine million, nine hundred forty-four thousand, one hundred forty-two".