6587133381 has 8 divisors (see below), whose sum is σ = 9758716160. Its totient is φ = 4391422236.

The previous prime is 6587133379. The next prime is 6587133419. The reversal of 6587133381 is 1833317856.

6587133381 is a `hidden beast` number, since 6 + 587 + 1 + 33 + 38 + 1 = 666.

It is not a de Polignac number, because 6587133381 - 2¹ = 6587133379 is a prime.

It is a super-2 number, since 2×6587133381² = 86780652358168982322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6587133281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121983925 + ... + 121983978.

It is an arithmetic number, because the mean of its divisors is an integer number (1219839520).

Almost surely, 2^6587133381 is an apocalyptic number.

It is an amenable number.

6587133381 is a deficient number, since it is larger than the sum of its proper divisors (3171582779).

6587133381 is a wasteful number, since it uses less digits than its factorization.

6587133381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243967912 (or 243967906 counting only the distinct ones).

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

The square root of 6587133381 is about 81161.1568485812. The cubic root of 6587133381 is about 1874.5577273655.

The spelling of 6587133381 in words is "six billion, five hundred eighty-seven million, one hundred thirty-three thousand, three hundred eighty-one".