6637124072 has 8 divisors (see below), whose sum is σ = 12444607650. Its totient is φ = 3318562032.

The previous prime is 6637124041. The next prime is 6637124107. The reversal of 6637124072 is 2704217366.

It can be written as a sum of positive squares in only one way, i.e., 3816027076 + 2821096996 = 61774^2 + 53114^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×6637124072² = 88102831894243722368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414820247 + ... + 414820262.

Almost surely, 2^6637124072 is an apocalyptic number.

It is an amenable number.

6637124072 is a deficient number, since it is larger than the sum of its proper divisors (5807483578).

6637124072 is a wasteful number, since it uses less digits than its factorization.

6637124072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829640515 (or 829640511 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 6637124072 is about 81468.5465195004. The cubic root of 6637124072 is about 1879.2878765095.

The spelling of 6637124072 in words is "six billion, six hundred thirty-seven million, one hundred twenty-four thousand, seventy-two".