785664204204 has 48 divisors (see below), whose sum is σ = 2000418529536. Its totient is φ = 238015060800.

The previous prime is 785664204203. The next prime is 785664204217. The reversal of 785664204204 is 402402466587.

It is a super-2 number, since 2×785664204204² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (785664204203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326107 + ... + 1295250.

It is an arithmetic number, because the mean of its divisors is an integer number (41675386032).

Almost surely, 2^785664204204 is an apocalyptic number.

It is an amenable number.

785664204204 is an abundant number, since it is smaller than the sum of its proper divisors (1214754325332).

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

785664204204 is a wasteful number, since it uses less digits than its factorization.

785664204204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625046 (or 1625044 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 48.

The spelling of 785664204204 in words is "seven hundred eighty-five billion, six hundred sixty-four million, two hundred four thousand, two hundred four".