2631133163251 has 2 divisors, whose sum is σ = 2631133163252. Its totient is φ = 2631133163250.

The previous prime is 2631133163213. The next prime is 2631133163273. The reversal of 2631133163251 is 1523613311362.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2631133163251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2631133163251.

It is not a weakly prime, because it can be changed into another prime (2631133193251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315566581625 + 1315566581626.

It is an arithmetic number, because the mean of its divisors is an integer number (1315566581626).

Almost surely, 2^{2631133163251} is an apocalyptic number.

2631133163251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2631133163251 is an equidigital number, since it uses as much as digits as its factorization.

2631133163251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 37.

The spelling of 2631133163251 in words is "two trillion, six hundred thirty-one billion, one hundred thirty-three million, one hundred sixty-three thousand, two hundred fifty-one".