7138569213 has 6 divisors (see below), whose sum is σ = 10311266654. Its totient is φ = 4759046136.

The previous prime is 7138569181. The next prime is 7138569223. The reversal of 7138569213 is 3129658317.

7138569213 is a `hidden beast` number, since 71 + 3 + 8 + 569 + 2 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7132309209 + 6260004 = 84453^2 + 2502^2 .

It is not a de Polignac number, because 7138569213 - 2⁵ = 7138569181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138569223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 396587170 + ... + 396587187.

Almost surely, 2^7138569213 is an apocalyptic number.

It is an amenable number.

7138569213 is a deficient number, since it is larger than the sum of its proper divisors (3172697441).

7138569213 is a wasteful number, since it uses less digits than its factorization.

7138569213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793174363 (or 793174360 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 7138569213 is about 84490.0539294419. The cubic root of 7138569213 is about 1925.4713379366.

The spelling of 7138569213 in words is "seven billion, one hundred thirty-eight million, five hundred sixty-nine thousand, two hundred thirteen".