3924720470664 has 144 divisors (see below), whose sum is σ = 12822830420400. Its totient is φ = 1121348678688.

The previous prime is 3924720470599. The next prime is 3924720470677. The reversal of 3924720470664 is 4660740274293.

3924720470664 is a `hidden beast` number, since 3 + 92 + 4 + 7 + 20 + 470 + 6 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 3924720470664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20505654 + ... + 20696165.

It is an arithmetic number, because the mean of its divisors is an integer number (89047433475).

Almost surely, 2^{3924720470664} is an apocalyptic number.

It is an amenable number.

3924720470664 is an abundant number, since it is smaller than the sum of its proper divisors (8898109949736).

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

3924720470664 is a wasteful number, since it uses less digits than its factorization.

3924720470664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41201854 (or 41201831 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 54.

The spelling of 3924720470664 in words is "three trillion, nine hundred twenty-four billion, seven hundred twenty million, four hundred seventy thousand, six hundred sixty-four".