2657038180631 has 2 divisors, whose sum is σ = 2657038180632. Its totient is φ = 2657038180630.

The previous prime is 2657038180613. The next prime is 2657038180637. The reversal of 2657038180631 is 1360818307562.

Together with previous prime (2657038180613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2657038180631 - 2²⁶ = 2656971071767 is a prime.

It is a super-2 number, since 2×2657038180631² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2657038180631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2657038180637) 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, 1328519090315 + 1328519090316.

It is an arithmetic number, because the mean of its divisors is an integer number (1328519090316).

Almost surely, 2^{2657038180631} is an apocalyptic number.

2657038180631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2657038180631 is an equidigital number, since it uses as much as digits as its factorization.

2657038180631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 2657038180631 in words is "two trillion, six hundred fifty-seven billion, thirty-eight million, one hundred eighty thousand, six hundred thirty-one".