6827687904 has 48 divisors (see below), whose sum is σ = 17928086400. Its totient is φ = 2275209600.

The previous prime is 6827687873. The next prime is 6827687947. The reversal of 6827687904 is 4097867286.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×6827687904² = 93234644228855826432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384829 + ... + 402179.

It is an arithmetic number, because the mean of its divisors is an integer number (373501800).

Almost surely, 2^6827687904 is an apocalyptic number.

It is an amenable number.

6827687904 is an abundant number, since it is smaller than the sum of its proper divisors (11100398496).

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

6827687904 is a wasteful number, since it uses less digits than its factorization.

6827687904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21463 (or 21455 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 57.

The square root of 6827687904 is about 82629.8245429579. The cubic root of 6827687904 is about 1897.1043522675.

The spelling of 6827687904 in words is "six billion, eight hundred twenty-seven million, six hundred eighty-seven thousand, nine hundred four".