2652607681 has 2 divisors, whose sum is σ = 2652607682. Its totient is φ = 2652607680.

The previous prime is 2652607679. The next prime is 2652607691. The reversal of 2652607681 is 1867062562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2609166400 + 43441281 = 51080^2 + 6591^2 .

It is a cyclic number.

It is not a de Polignac number, because 2652607681 - 2¹ = 2652607679 is a prime.

It is a super-2 number, since 2×2652607681² = 14072655018600395522, which contains 22 as substring.

Together with 2652607679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2652607691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1326303840 + 1326303841.

It is an arithmetic number, because the mean of its divisors is an integer number (1326303841).

Almost surely, 2^2652607681 is an apocalyptic number.

It is an amenable number.

2652607681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2652607681 is an equidigital number, since it uses as much as digits as its factorization.

2652607681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 2652607681 is about 51503.4725139966. The cubic root of 2652607681 is about 1384.2812643594.

The spelling of 2652607681 in words is "two billion, six hundred fifty-two million, six hundred seven thousand, six hundred eighty-one".