6581133873 has 16 divisors (see below), whose sum is σ = 10262977600. Its totient is φ = 4156505280.

The previous prime is 6581133859. The next prime is 6581133883. The reversal of 6581133873 is 3783311856.

It is not a de Polignac number, because 6581133873 - 2¹⁷ = 6581002801 is a prime.

It is a super-2 number, since 2×6581133873² = 86622646108695960258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6581133883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6413848 + ... + 6414873.

It is an arithmetic number, because the mean of its divisors is an integer number (641436100).

Almost surely, 2^6581133873 is an apocalyptic number.

It is an amenable number.

6581133873 is a deficient number, since it is larger than the sum of its proper divisors (3681843727).

6581133873 is a wasteful number, since it uses less digits than its factorization.

6581133873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12828749 (or 12828743 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 6581133873 is about 81124.1879651193. The cubic root of 6581133873 is about 1873.9884438070.

The spelling of 6581133873 in words is "six billion, five hundred eighty-one million, one hundred thirty-three thousand, eight hundred seventy-three".