2299207681 has 4 divisors (see below), whose sum is σ = 2342589012. Its totient is φ = 2255826352.

The previous prime is 2299207663. The next prime is 2299207699. The reversal of 2299207681 is 1867029922.

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

It is an interprime number because it is at equal distance from previous prime (2299207663) and next prime (2299207699).

It can be written as a sum of positive squares in 2 ways, for example, as 1543232656 + 755975025 = 39284^2 + 27495^2 .

It is a cyclic number.

It is not a de Polignac number, because 2299207681 - 2¹⁹ = 2298683393 is a prime.

It is a super-2 number, since 2×2299207681² = 10572711920738795522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2299207621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21690586 + ... + 21690691.

It is an arithmetic number, because the mean of its divisors is an integer number (585647253).

Almost surely, 2^2299207681 is an apocalyptic number.

It is an amenable number.

2299207681 is a deficient number, since it is larger than the sum of its proper divisors (43381331).

2299207681 is an equidigital number, since it uses as much as digits as its factorization.

2299207681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43381330.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 2299207681 is about 47950.0540249956. The cubic root of 2299207681 is about 1319.8545296149.

The spelling of 2299207681 in words is "two billion, two hundred ninety-nine million, two hundred seven thousand, six hundred eighty-one".