6427684668 has 24 divisors (see below), whose sum is σ = 15063430480. Its totient is φ = 2133204480.

The previous prime is 6427684651. The next prime is 6427684691. The reversal of 6427684668 is 8664867246.

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, 1166773 + ... + 1172268.

Almost surely, 2^6427684668 is an apocalyptic number.

It is an amenable number.

6427684668 is an abundant number, since it is smaller than the sum of its proper divisors (8635745812).

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

6427684668 is a wasteful number, since it uses less digits than its factorization.

6427684668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339277 (or 2339275 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 57.

The square root of 6427684668 is about 80172.8424592767. The cubic root of 6427684668 is about 1859.3087835122.

The spelling of 6427684668 in words is "six billion, four hundred twenty-seven million, six hundred eighty-four thousand, six hundred sixty-eight".