6130273931721 has 81 divisors (see below), whose sum is σ = 9294559351623. Its totient is φ = 3893364558720.

The previous prime is 6130273931689. The next prime is 6130273931729. The reversal of 6130273931721 is 1271393720316.

The square root of 6130273931721 is 2475939.

It is a perfect power (a square), and thus also a powerful number.

6130273931721 is a `hidden beast` number, since 6 + 1 + 302 + 7 + 3 + 9 + 317 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1653088775625 + 4477185156096 = 1285725^2 + 2115936^2 .

It is not a de Polignac number, because 6130273931721 - 2⁵ = 6130273931689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6130273931729) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 18190723665 + ... + 18190724001.

Almost surely, 2^{6130273931721} is an apocalyptic number.

6130273931721 is the 2475939-th square number.

6130273931721 is the 1237970-th centered octagonal number.

It is an amenable number.

6130273931721 is a deficient number, since it is larger than the sum of its proper divisors (3164285419902).

6130273931721 is an frugal number, since it uses more digits than its factorization.

6130273931721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The spelling of 6130273931721 in words is "six trillion, one hundred thirty billion, two hundred seventy-three million, nine hundred thirty-one thousand, seven hundred twenty-one".