22149947839 has 8 divisors (see below), whose sum is σ = 22821464432. Its totient is φ = 21488379840.

The previous prime is 22149947773. The next prime is 22149947849. The reversal of 22149947839 is 93874994122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22149947839 - 2⁷ = 22149947711 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 (22149947849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2482629 + ... + 2491534.

It is an arithmetic number, because the mean of its divisors is an integer number (2852683054).

Almost surely, 2^22149947839 is an apocalyptic number.

22149947839 is a deficient number, since it is larger than the sum of its proper divisors (671516593).

22149947839 is an equidigital number, since it uses as much as digits as its factorization.

22149947839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4974297.

The product of its digits is 7838208, while the sum is 58.

The spelling of 22149947839 in words is "twenty-two billion, one hundred forty-nine million, nine hundred forty-seven thousand, eight hundred thirty-nine".