6857780976 has 40 divisors (see below), whose sum is σ = 19684372560. Its totient is φ = 2285926848.

The previous prime is 6857780959. The next prime is 6857780983. The reversal of 6857780976 is 6790877586.

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, 7936815 + ... + 7937678.

It is an arithmetic number, because the mean of its divisors is an integer number (492109314).

Almost surely, 2^6857780976 is an apocalyptic number.

It is an amenable number.

6857780976 is an abundant number, since it is smaller than the sum of its proper divisors (12826591584).

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

6857780976 is a wasteful number, since it uses less digits than its factorization.

6857780976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15874510 (or 15874498 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 63.

The square root of 6857780976 is about 82811.7200401006. The cubic root of 6857780976 is about 1899.8874334049.

The spelling of 6857780976 in words is "six billion, eight hundred fifty-seven million, seven hundred eighty thousand, nine hundred seventy-six".