6729770628 has 60 divisors (see below), whose sum is σ = 20106235072. Its totient is φ = 1922790960.

The previous prime is 6729770609. The next prime is 6729770651. The reversal of 6729770628 is 8260779276.

6729770628 is a `hidden beast` number, since 6 + 7 + 2 + 9 + 7 + 7 + 0 + 628 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1481368 + ... + 1485903.

Almost surely, 2^6729770628 is an apocalyptic number.

It is an amenable number.

6729770628 is an abundant number, since it is smaller than the sum of its proper divisors (13376464444).

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

6729770628 is a wasteful number, since it uses less digits than its factorization.

6729770628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967294 (or 2967283 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The square root of 6729770628 is about 82035.1792098975. The cubic root of 6729770628 is about 1887.9917292471.

The spelling of 6729770628 in words is "six billion, seven hundred twenty-nine million, seven hundred seventy thousand, six hundred twenty-eight".