213999570009 has 12 divisors (see below), whose sum is σ = 311366772756. Its totient is φ = 141625018752.

The previous prime is 213999569999. The next prime is 213999570023. The reversal of 213999570009 is 900075999312.

It can be written as a sum of positive squares in 2 ways, for example, as 108148899600 + 105850670409 = 328860^2 + 325347^2 .

It is not a de Polignac number, because 213999570009 - 2¹⁷ = 213999438937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213999570209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86778804 + ... + 86781269.

It is an arithmetic number, because the mean of its divisors is an integer number (25947231063).

Almost surely, 2^213999570009 is an apocalyptic number.

It is an amenable number.

213999570009 is a deficient number, since it is larger than the sum of its proper divisors (97367202747).

213999570009 is a wasteful number, since it uses less digits than its factorization.

213999570009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173560216 (or 173560213 counting only the distinct ones).

The product of its (nonzero) digits is 1377810, while the sum is 54.

The spelling of 213999570009 in words is "two hundred thirteen billion, nine hundred ninety-nine million, five hundred seventy thousand, nine".