6987275872 has 24 divisors (see below), whose sum is σ = 13758103800. Its totient is φ = 3493154304.

The previous prime is 6987275857. The next prime is 6987275879. The reversal of 6987275872 is 2785727896.

It is a super-2 number, since 2×6987275872² = 97644048222866720768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (61) 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 6987275872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6987275879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372904 + ... + 391192.

It is an arithmetic number, because the mean of its divisors is an integer number (573254325).

Almost surely, 2^6987275872 is an apocalyptic number.

It is an amenable number.

6987275872 is a deficient number, since it is larger than the sum of its proper divisors (6770827928).

6987275872 is a wasteful number, since it uses less digits than its factorization.

6987275872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30238 (or 30230 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 61.

The square root of 6987275872 is about 83589.9268572476. The cubic root of 6987275872 is about 1911.7714139992.

The spelling of 6987275872 in words is "six billion, nine hundred eighty-seven million, two hundred seventy-five thousand, eight hundred seventy-two".