2102872399 has 2 divisors, whose sum is σ = 2102872400. Its totient is φ = 2102872398.

The previous prime is 2102872381. The next prime is 2102872403. The reversal of 2102872399 is 9932782012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2102872399 - 2⁷ = 2102872271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102872349) 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 as a sum of consecutive naturals, namely, 1051436199 + 1051436200.

It is an arithmetic number, because the mean of its divisors is an integer number (1051436200).

Almost surely, 2^2102872399 is an apocalyptic number.

2102872399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102872399 is an equidigital number, since it uses as much as digits as its factorization.

2102872399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 2102872399 is about 45857.0866824311. The cubic root of 2102872399 is about 1281.1627615748.

The spelling of 2102872399 in words is "two billion, one hundred two million, eight hundred seventy-two thousand, three hundred ninety-nine".