6637492068 has 48 divisors (see below), whose sum is σ = 15557504256. Its totient is φ = 2202520320.

The previous prime is 6637492067. The next prime is 6637492093. The reversal of 6637492068 is 8602947366.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6637492068.

It is not an unprimeable number, because it can be changed into a prime (6637492061) 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, 2893530 + ... + 2895822.

It is an arithmetic number, because the mean of its divisors is an integer number (324114672).

Almost surely, 2^6637492068 is an apocalyptic number.

It is an amenable number.

6637492068 is an abundant number, since it is smaller than the sum of its proper divisors (8920012188).

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

6637492068 is a wasteful number, since it uses less digits than its factorization.

6637492068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284 (or 3282 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 51.

The square root of 6637492068 is about 81470.8050040013. The cubic root of 6637492068 is about 1879.3226083016.

The spelling of 6637492068 in words is "six billion, six hundred thirty-seven million, four hundred ninety-two thousand, sixty-eight".