77802476660768 has 48 divisors (see below), whose sum is σ = 161324923465440. Its totient is φ = 36833341248000.

The previous prime is 77802476660681. The next prime is 77802476660773. The reversal of 77802476660768 is 86706667420877.

It is a junction number, because it is equal to n+sod(n) for n = 77802476660695 and 77802476660704.

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, 34430978 + ... + 36620993.

It is an arithmetic number, because the mean of its divisors is an integer number (3360935905530).

Almost surely, 2^{77802476660768} is an apocalyptic number.

It is an amenable number.

77802476660768 is an abundant number, since it is smaller than the sum of its proper divisors (83522446804672).

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

77802476660768 is a wasteful number, since it uses less digits than its factorization.

77802476660768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71053801 (or 71053793 counting only the distinct ones).

The product of its (nonzero) digits is 1593188352, while the sum is 74.

The spelling of 77802476660768 in words is "seventy-seven trillion, eight hundred two billion, four hundred seventy-six million, six hundred sixty thousand, seven hundred sixty-eight".