3644934699312 has 80 divisors (see below), whose sum is σ = 10467853452000. Its totient is φ = 1214334775296.

The previous prime is 3644934699299. The next prime is 3644934699319. The reversal of 3644934699312 is 2139964394463.

3644934699312 is a `hidden beast` number, since 3 + 6 + 4 + 493 + 46 + 9 + 93 + 12 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 3644934699312.

It is not an unprimeable number, because it can be changed into a prime (3644934699319) 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, 1417237 + ... + 3049332.

It is an arithmetic number, because the mean of its divisors is an integer number (130848168150).

Almost surely, 2^{3644934699312} is an apocalyptic number.

It is an amenable number.

3644934699312 is an abundant number, since it is smaller than the sum of its proper divisors (6822918752688).

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

3644934699312 is a wasteful number, since it uses less digits than its factorization.

3644934699312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4468475 (or 4468463 counting only the distinct ones).

The product of its digits is 90699264, while the sum is 63.

The spelling of 3644934699312 in words is "three trillion, six hundred forty-four billion, nine hundred thirty-four million, six hundred ninety-nine thousand, three hundred twelve".