2622720899 has 4 divisors (see below), whose sum is σ = 2623191480. Its totient is φ = 2622250320.

The previous prime is 2622720791. The next prime is 2622720941. The reversal of 2622720899 is 9980272262.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9980272262 = 2 ⋅4990136131.

It is a cyclic number.

It is not a de Polignac number, because 2622720899 - 2⁸ = 2622720643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2622720599) 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, 226829 + ... + 238110.

It is an arithmetic number, because the mean of its divisors is an integer number (655797870).

Almost surely, 2^2622720899 is an apocalyptic number.

2622720899 is a deficient number, since it is larger than the sum of its proper divisors (470581).

2622720899 is an equidigital number, since it uses as much as digits as its factorization.

2622720899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470580.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 2622720899 is about 51212.5072516470. The cubic root of 2622720899 is about 1379.0627429527.

The spelling of 2622720899 in words is "two billion, six hundred twenty-two million, seven hundred twenty thousand, eight hundred ninety-nine".