2299061991 has 16 divisors (see below), whose sum is σ = 3202142976. Its totient is φ = 1464488256.

The previous prime is 2299061983. The next prime is 2299061993. The reversal of 2299061991 is 1991609922.

It is not a de Polignac number, because 2299061991 - 2³ = 2299061983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2299061991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2299061993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48276 + ... + 83238.

It is an arithmetic number, because the mean of its divisors is an integer number (200133936).

Almost surely, 2^2299061991 is an apocalyptic number.

2299061991 is a deficient number, since it is larger than the sum of its proper divisors (903080985).

2299061991 is a wasteful number, since it uses less digits than its factorization.

2299061991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35942.

The product of its (nonzero) digits is 157464, while the sum is 48.

The square root of 2299061991 is about 47948.5348159879. The cubic root of 2299061991 is about 1319.8266513637.

The spelling of 2299061991 in words is "two billion, two hundred ninety-nine million, sixty-one thousand, nine hundred ninety-one".