2622656961 has 16 divisors (see below), whose sum is σ = 3933389120. Its totient is φ = 1748436516.

The previous prime is 2622656941. The next prime is 2622656999. The reversal of 2622656961 is 1696562262.

It is a happy number.

2622656961 is a `hidden beast` number, since 2 + 6 + 2 + 26 + 569 + 61 = 666.

It is not a de Polignac number, because 2622656961 - 2⁷ = 2622656833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2622656941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 597415 + ... + 601788.

It is an arithmetic number, because the mean of its divisors is an integer number (245836820).

Almost surely, 2^2622656961 is an apocalyptic number.

It is an amenable number.

2622656961 is a deficient number, since it is larger than the sum of its proper divisors (1310732159).

2622656961 is an frugal number, since it uses more digits than its factorization.

2622656961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199224 (or 1199206 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 2622656961 is about 51211.8830058025. The cubic root of 2622656961 is about 1379.0515363682.

The spelling of 2622656961 in words is "two billion, six hundred twenty-two million, six hundred fifty-six thousand, nine hundred sixty-one".