6981918304 has 24 divisors (see below), whose sum is σ = 13881753648. Its totient is φ = 3456393600.

The previous prime is 6981918227. The next prime is 6981918319. The reversal of 6981918304 is 4038191896.

It is a super-3 number, since 3×6981918304³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076892 + ... + 1083355.

It is an arithmetic number, because the mean of its divisors is an integer number (578406402).

Almost surely, 2^6981918304 is an apocalyptic number.

It is an amenable number.

6981918304 is a deficient number, since it is larger than the sum of its proper divisors (6899835344).

6981918304 is a wasteful number, since it uses less digits than its factorization.

6981918304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160358 (or 2160350 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 6981918304 is about 83557.8739796556. The cubic root of 6981918304 is about 1911.2826653801.

The spelling of 6981918304 in words is "six billion, nine hundred eighty-one million, nine hundred eighteen thousand, three hundred four".