65786799764 has 24 divisors (see below), whose sum is σ = 131579253120. Its totient is φ = 28193131296.

The previous prime is 65786799763. The next prime is 65786799839. The reversal of 65786799764 is 46799768756.

65786799764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 65786799691 and 65786799700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65786799763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986609 + ... + 1051175.

It is an arithmetic number, because the mean of its divisors is an integer number (5482468880).

Almost surely, 2^65786799764 is an apocalyptic number.

It is an amenable number.

65786799764 is an abundant number, since it is smaller than the sum of its proper divisors (65792453356).

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

65786799764 is a wasteful number, since it uses less digits than its factorization.

65786799764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100967 (or 100965 counting only the distinct ones).

The product of its digits is 960180480, while the sum is 74.

The spelling of 65786799764 in words is "sixty-five billion, seven hundred eighty-six million, seven hundred ninety-nine thousand, seven hundred sixty-four".