77093401920 has 112 divisors (see below), whose sum is σ = 255413865600. Its totient is φ = 19664398336.

The previous prime is 77093401859. The next prime is 77093401933. The reversal of 77093401920 is 2910439077.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1723695 + ... + 1767854.

Almost surely, 2^77093401920 is an apocalyptic number.

It is an amenable number.

77093401920 is an abundant number, since it is smaller than the sum of its proper divisors (178320463680).

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

77093401920 is a wasteful number, since it uses less digits than its factorization.

77093401920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491592 (or 3491582 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 42.

The spelling of 77093401920 in words is "seventy-seven billion, ninety-three million, four hundred one thousand, nine hundred twenty".