6013481721 has 96 divisors (see below), whose sum is σ = 9530680320. Its totient is φ = 3344875776.

The previous prime is 6013481717. The next prime is 6013481737. The reversal of 6013481721 is 1271843106.

It is not a de Polignac number, because 6013481721 - 2² = 6013481717 is a prime.

It is a super-2 number, since 2×6013481721² = 72323924817602243682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6013481821) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 72451546 + ... + 72451628.

It is an arithmetic number, because the mean of its divisors is an integer number (99277920).

Almost surely, 2^6013481721 is an apocalyptic number.

It is an amenable number.

6013481721 is a deficient number, since it is larger than the sum of its proper divisors (3517198599).

6013481721 is a wasteful number, since it uses less digits than its factorization.

6013481721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 6013481721 is about 77546.6422290482. The cubic root of 6013481721 is about 1818.4805698971.

The spelling of 6013481721 in words is "six billion, thirteen million, four hundred eighty-one thousand, seven hundred twenty-one".