6428906876 has 48 divisors (see below), whose sum is σ = 13519343040. Its totient is φ = 2616606720.

The previous prime is 6428906867. The next prime is 6428906879. The reversal of 6428906876 is 6786098246.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6428906879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15365 + ... + 114428.

It is an arithmetic number, because the mean of its divisors is an integer number (281652980).

Almost surely, 2^6428906876 is an apocalyptic number.

It is an amenable number.

6428906876 is an abundant number, since it is smaller than the sum of its proper divisors (7090436164).

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

6428906876 is a wasteful number, since it uses less digits than its factorization.

6428906876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129894 (or 129892 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 56.

The square root of 6428906876 is about 80180.4644286874. The cubic root of 6428906876 is about 1859.4266236661.

The spelling of 6428906876 in words is "six billion, four hundred twenty-eight million, nine hundred six thousand, eight hundred seventy-six".