77514621740 has 48 divisors (see below), whose sum is σ = 163573693920. Its totient is φ = 30854960640.

The previous prime is 77514621733. The next prime is 77514621763. The reversal of 77514621740 is 4712641577.

It is a junction number, because it is equal to n+sod(n) for n = 77514621691 and 77514621700.

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, 10569875 + ... + 10577205.

It is an arithmetic number, because the mean of its divisors is an integer number (3407785290).

Almost surely, 2^77514621740 is an apocalyptic number.

It is an amenable number.

77514621740 is an abundant number, since it is smaller than the sum of its proper divisors (86059072180).

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

77514621740 is a wasteful number, since it uses less digits than its factorization.

77514621740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9842 (or 9840 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 44.

The spelling of 77514621740 in words is "seventy-seven billion, five hundred fourteen million, six hundred twenty-one thousand, seven hundred forty".