2635651841 has 2 divisors, whose sum is σ = 2635651842. Its totient is φ = 2635651840.

The previous prime is 2635651817. The next prime is 2635651849. The reversal of 2635651841 is 1481565362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2228217616 + 407434225 = 47204^2 + 20185^2 .

It is a cyclic number.

It is not a de Polignac number, because 2635651841 - 2¹⁸ = 2635389697 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2635651849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1317825920 + 1317825921.

It is an arithmetic number, because the mean of its divisors is an integer number (1317825921).

Almost surely, 2^2635651841 is an apocalyptic number.

It is an amenable number.

2635651841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2635651841 is an equidigital number, since it uses as much as digits as its factorization.

2635651841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 41.

The square root of 2635651841 is about 51338.5999127362. The cubic root of 2635651841 is about 1381.3254507872.

The spelling of 2635651841 in words is "two billion, six hundred thirty-five million, six hundred fifty-one thousand, eight hundred forty-one".