6642288602028 has 72 divisors (see below), whose sum is σ = 17414796326928. Its totient is φ = 2213752052736.

The previous prime is 6642288602011. The next prime is 6642288602039. The reversal of 6642288602028 is 8202068822466.

6642288602028 is a `hidden beast` number, since 6 + 6 + 4 + 2 + 2 + 8 + 8 + 602 + 0 + 28 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5763900 + ... + 6819612.

Almost surely, 2^{6642288602028} is an apocalyptic number.

It is an amenable number.

6642288602028 is an abundant number, since it is smaller than the sum of its proper divisors (10772507724900).

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

6642288602028 is a wasteful number, since it uses less digits than its factorization.

6642288602028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062205 (or 1062191 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 54.

The spelling of 6642288602028 in words is "six trillion, six hundred forty-two billion, two hundred eighty-eight million, six hundred two thousand, twenty-eight".