6642902474 has 16 divisors (see below), whose sum is σ = 11295624480. Its totient is φ = 2904588720.

The previous prime is 6642902471. The next prime is 6642902479. The reversal of 6642902474 is 4742092466.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6642902471) 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, 6723092 + ... + 6724079.

It is an arithmetic number, because the mean of its divisors is an integer number (705976530).

Almost surely, 2^6642902474 is an apocalyptic number.

6642902474 is a deficient number, since it is larger than the sum of its proper divisors (4652722006).

6642902474 is a wasteful number, since it uses less digits than its factorization.

6642902474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13447205.

The product of its (nonzero) digits is 580608, while the sum is 44.

The square root of 6642902474 is about 81504.0028096780. The cubic root of 6642902474 is about 1879.8330991491.

The spelling of 6642902474 in words is "six billion, six hundred forty-two million, nine hundred two thousand, four hundred seventy-four".