2562646091 has 2 divisors, whose sum is σ = 2562646092. Its totient is φ = 2562646090.

The previous prime is 2562646081. The next prime is 2562646111. The reversal of 2562646091 is 1906462652.

It is a happy number.

2562646091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2562646091 - 2²⁶ = 2495537227 is a prime.

It is not a weakly prime, because it can be changed into another prime (2562646081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281323045 + 1281323046.

It is an arithmetic number, because the mean of its divisors is an integer number (1281323046).

Almost surely, 2^2562646091 is an apocalyptic number.

2562646091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2562646091 is an equidigital number, since it uses as much as digits as its factorization.

2562646091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 2562646091 is about 50622.5847917706. The cubic root of 2562646091 is about 1368.4519233711.

It can be divided in two parts, 25626 and 46091, that added together give a palindrome (71717).

The spelling of 2562646091 in words is "two billion, five hundred sixty-two million, six hundred forty-six thousand, ninety-one".