2109872579 has 2 divisors, whose sum is σ = 2109872580. Its totient is φ = 2109872578.

The previous prime is 2109872563. The next prime is 2109872599. The reversal of 2109872579 is 9752789012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2109872579 - 2⁴ = 2109872563 is a prime.

It is a super-2 number, since 2×2109872579² = 8903124599232222482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2109872549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054936289 + 1054936290.

It is an arithmetic number, because the mean of its divisors is an integer number (1054936290).

Almost surely, 2^2109872579 is an apocalyptic number.

2109872579 is a deficient number, since it is larger than the sum of its proper divisors (1).

2109872579 is an equidigital number, since it uses as much as digits as its factorization.

2109872579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 2109872579 is about 45933.3493118018. The cubic root of 2109872579 is about 1282.5827933383.

It can be divided in two parts, 210 and 9872579, that added together give a palindrome (9872789).

The spelling of 2109872579 in words is "two billion, one hundred nine million, eight hundred seventy-two thousand, five hundred seventy-nine".