77913930294 has 48 divisors (see below), whose sum is σ = 177678865728. Its totient is φ = 25583667912.

The previous prime is 77913930293. The next prime is 77913930299. The reversal of 77913930294 is 49203931977.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 77913930294.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77913930293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1163832 + ... + 1228955.

It is an arithmetic number, because the mean of its divisors is an integer number (3701643036).

Almost surely, 2^77913930294 is an apocalyptic number.

77913930294 is an abundant number, since it is smaller than the sum of its proper divisors (99764935434).

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

77913930294 is a wasteful number, since it uses less digits than its factorization.

77913930294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392871 (or 2392859 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 54.

The spelling of 77913930294 in words is "seventy-seven billion, nine hundred thirteen million, nine hundred thirty thousand, two hundred ninety-four".