2895623681 has 2 divisors, whose sum is σ = 2895623682. Its totient is φ = 2895623680.

The previous prime is 2895623671. The next prime is 2895623713. The reversal of 2895623681 is 1863265982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2038071025 + 857552656 = 45145^2 + 29284^2 .

It is a cyclic number.

It is not a de Polignac number, because 2895623681 - 2²⁶ = 2828514817 is a prime.

It is a super-2 number, since 2×2895623681² = 16769273003935979522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2895623671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1447811840 + 1447811841.

It is an arithmetic number, because the mean of its divisors is an integer number (1447811841).

Almost surely, 2^2895623681 is an apocalyptic number.

It is an amenable number.

2895623681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2895623681 is an equidigital number, since it uses as much as digits as its factorization.

2895623681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 50.

The square root of 2895623681 is about 53810.9996283288. Note that the first 3 decimals coincide. The cubic root of 2895623681 is about 1425.3254504018.

The spelling of 2895623681 in words is "two billion, eight hundred ninety-five million, six hundred twenty-three thousand, six hundred eighty-one".