2631910639559 has 2 divisors, whose sum is σ = 2631910639560. Its totient is φ = 2631910639558.

The previous prime is 2631910639537. The next prime is 2631910639573. The reversal of 2631910639559 is 9559360191362.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2631910639559 is a prime.

It is a super-2 number, since 2×2631910639559² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2631910639498 and 2631910639507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2631910039559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315955319779 + 1315955319780.

It is an arithmetic number, because the mean of its divisors is an integer number (1315955319780).

Almost surely, 2^{2631910639559} is an apocalyptic number.

2631910639559 is a deficient number, since it is larger than the sum of its proper divisors (1).

2631910639559 is an equidigital number, since it uses as much as digits as its factorization.

2631910639559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11809800, while the sum is 59.

The spelling of 2631910639559 in words is "two trillion, six hundred thirty-one billion, nine hundred ten million, six hundred thirty-nine thousand, five hundred fifty-nine".