6628729296 has 80 divisors (see below), whose sum is σ = 19902297600. Its totient is φ = 1861816704.

The previous prime is 6628729279. The next prime is 6628729321. The reversal of 6628729296 is 6929278266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147366 + ... + 187013.

It is an arithmetic number, because the mean of its divisors is an integer number (248778720).

Almost surely, 2^6628729296 is an apocalyptic number.

It is an amenable number.

6628729296 is an abundant number, since it is smaller than the sum of its proper divisors (13273568304).

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

6628729296 is a wasteful number, since it uses less digits than its factorization.

6628729296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334456 (or 334450 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 57.

The square root of 6628729296 is about 81417.0086407011. The cubic root of 6628729296 is about 1878.4952211049.

The spelling of 6628729296 in words is "six billion, six hundred twenty-eight million, seven hundred twenty-nine thousand, two hundred ninety-six".