2049902579 has 4 divisors (see below), whose sum is σ = 2097574776. Its totient is φ = 2002230384.

The previous prime is 2049902573. The next prime is 2049902581. The reversal of 2049902579 is 9752099402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2049902579 - 2⁴ = 2049902563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2049902573) 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 3 ways as a sum of consecutive naturals, for example, 23836034 + ... + 23836119.

It is an arithmetic number, because the mean of its divisors is an integer number (524393694).

Almost surely, 2^2049902579 is an apocalyptic number.

2049902579 is a deficient number, since it is larger than the sum of its proper divisors (47672197).

2049902579 is an equidigital number, since it uses as much as digits as its factorization.

2049902579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47672196.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 2049902579 is about 45275.8498429350. The cubic root of 2049902579 is about 1270.3139693289.

The spelling of 2049902579 in words is "two billion, forty-nine million, nine hundred two thousand, five hundred seventy-nine".