213739824369 has 16 divisors (see below), whose sum is σ = 286690088960. Its totient is φ = 141643786320.

The previous prime is 213739824329. The next prime is 213739824371. The reversal of 213739824369 is 963428937312.

It is not a de Polignac number, because 213739824369 - 2³⁷ = 76300870897 is a prime.

It is a super-2 number, since 2×213739824369² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213739824329) 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, 57474 + ... + 656340.

It is an arithmetic number, because the mean of its divisors is an integer number (17918130560).

Almost surely, 2^213739824369 is an apocalyptic number.

It is an amenable number.

213739824369 is a deficient number, since it is larger than the sum of its proper divisors (72950264591).

213739824369 is a wasteful number, since it uses less digits than its factorization.

213739824369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599580.

The product of its digits is 11757312, while the sum is 57.

The spelling of 213739824369 in words is "two hundred thirteen billion, seven hundred thirty-nine million, eight hundred twenty-four thousand, three hundred sixty-nine".