65785471764 has 48 divisors (see below), whose sum is σ = 156272524800. Its totient is φ = 21533151456.

The previous prime is 65785471753. The next prime is 65785471841. The reversal of 65785471764 is 46717458756.

It is a junction number, because it is equal to n+sod(n) for n = 65785471698 and 65785471707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600099 + ... + 701205.

It is an arithmetic number, because the mean of its divisors is an integer number (3255677600).

Almost surely, 2^65785471764 is an apocalyptic number.

It is an amenable number.

65785471764 is an abundant number, since it is smaller than the sum of its proper divisors (90487053036).

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

65785471764 is a wasteful number, since it uses less digits than its factorization.

65785471764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102092 (or 102090 counting only the distinct ones).

The product of its digits is 39513600, while the sum is 60.

The spelling of 65785471764 in words is "sixty-five billion, seven hundred eighty-five million, four hundred seventy-one thousand, seven hundred sixty-four".