2637615276641 has 2 divisors, whose sum is σ = 2637615276642. Its totient is φ = 2637615276640.

The previous prime is 2637615276631. The next prime is 2637615276649. The reversal of 2637615276641 is 1466725167362.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1792061465041 + 845553811600 = 1338679^2 + 919540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2637615276641 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 (2637615276649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1318807638320 + 1318807638321.

It is an arithmetic number, because the mean of its divisors is an integer number (1318807638321).

Almost surely, 2^{2637615276641} is an apocalyptic number.

It is an amenable number.

2637615276641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2637615276641 is an equidigital number, since it uses as much as digits as its factorization.

2637615276641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 56.

The spelling of 2637615276641 in words is "two trillion, six hundred thirty-seven billion, six hundred fifteen million, two hundred seventy-six thousand, six hundred forty-one".