2199537839 has 2 divisors, whose sum is σ = 2199537840. Its totient is φ = 2199537838.

The previous prime is 2199537827. The next prime is 2199537919. The reversal of 2199537839 is 9387359912.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2199537839 - 2²⁰ = 2198489263 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2199537139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099768919 + 1099768920.

It is an arithmetic number, because the mean of its divisors is an integer number (1099768920).

Almost surely, 2^2199537839 is an apocalyptic number.

2199537839 is a deficient number, since it is larger than the sum of its proper divisors (1).

2199537839 is an equidigital number, since it uses as much as digits as its factorization.

2199537839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3674160, while the sum is 56.

The square root of 2199537839 is about 46899.2306866541. The cubic root of 2199537839 is about 1300.5003673455.

The spelling of 2199537839 in words is "two billion, one hundred ninety-nine million, five hundred thirty-seven thousand, eight hundred thirty-nine".