6721498674 has 48 divisors (see below), whose sum is σ = 15969586464. Its totient is φ = 2026252800.

The previous prime is 6721498669. The next prime is 6721498681. The reversal of 6721498674 is 4768941276.

6721498674 is a `hidden beast` number, since 67 + 21 + 498 + 6 + 74 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 6721498674.

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, 49732 + ... + 126159.

It is an arithmetic number, because the mean of its divisors is an integer number (332699718).

Almost surely, 2^6721498674 is an apocalyptic number.

6721498674 is an abundant number, since it is smaller than the sum of its proper divisors (9248087790).

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

6721498674 is a wasteful number, since it uses less digits than its factorization.

6721498674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176103 (or 176100 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 6721498674 is about 81984.7465934975. The cubic root of 6721498674 is about 1887.2178651380.

The spelling of 6721498674 in words is "six billion, seven hundred twenty-one million, four hundred ninety-eight thousand, six hundred seventy-four".