2631910639537 has 2 divisors, whose sum is σ = 2631910639538. Its totient is φ = 2631910639536.

The previous prime is 2631910639493. The next prime is 2631910639559. The reversal of 2631910639537 is 7359360191362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1391930399601 + 1239980239936 = 1179801^2 + 1113544^2 .

It is a cyclic number.

It is not a de Polignac number, because 2631910639537 - 2⁷ = 2631910639409 is a prime.

It is a super-2 number, since 2×2631910639537² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2631910639577) 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, 1315955319768 + 1315955319769.

It is an arithmetic number, because the mean of its divisors is an integer number (1315955319769).

Almost surely, 2^{2631910639537} is an apocalyptic number.

It is an amenable number.

2631910639537 is a deficient number, since it is larger than the sum of its proper divisors (1).

2631910639537 is an equidigital number, since it uses as much as digits as its factorization.

2631910639537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5511240, while the sum is 55.

The spelling of 2631910639537 in words is "two trillion, six hundred thirty-one billion, nine hundred ten million, six hundred thirty-nine thousand, five hundred thirty-seven".