6379551680 has 28 divisors (see below), whose sum is σ = 15191308200. Its totient is φ = 2551820544.

The previous prime is 6379551671. The next prime is 6379551691. The reversal of 6379551680 is 861559736.

It is a happy number.

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, 9967730 + ... + 9968369.

Almost surely, 2^6379551680 is an apocalyptic number.

It is an amenable number.

6379551680 is an abundant number, since it is smaller than the sum of its proper divisors (8811756520).

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

6379551680 is a wasteful number, since it uses less digits than its factorization.

6379551680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19936116 (or 19936106 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 50.

The square root of 6379551680 is about 79872.0957531477. The cubic root of 6379551680 is about 1854.6560760037.

The spelling of 6379551680 in words is "six billion, three hundred seventy-nine million, five hundred fifty-one thousand, six hundred eighty".