6129761328 has 30 divisors (see below), whose sum is σ = 17154818564. Its totient is φ = 2043253728.

The previous prime is 6129761321. The next prime is 6129761333. The reversal of 6129761328 is 8231679216.

6129761328 is a `hidden beast` number, since 6 + 1 + 2 + 9 + 7 + 613 + 28 = 666.

It is not an unprimeable number, because it can be changed into a prime (6129761321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21283750 + ... + 21284037.

Almost surely, 2^6129761328 is an apocalyptic number.

It is an amenable number.

6129761328 is an abundant number, since it is smaller than the sum of its proper divisors (11025057236).

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

6129761328 is a wasteful number, since it uses less digits than its factorization.

6129761328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42567801 (or 42567792 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 6129761328 is about 78292.7923119364. The cubic root of 6129761328 is about 1830.1268316646.

The spelling of 6129761328 in words is "six billion, one hundred twenty-nine million, seven hundred sixty-one thousand, three hundred twenty-eight".