2449631318957 has 2 divisors, whose sum is σ = 2449631318958. Its totient is φ = 2449631318956.

The previous prime is 2449631318947. The next prime is 2449631318989. The reversal of 2449631318957 is 7598131369442.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1815934124356 + 633697194601 = 1347566^2 + 796051^2 .

It is a cyclic number.

It is not a de Polignac number, because 2449631318957 - 2¹⁸ = 2449631056813 is a prime.

It is a super-2 number, since 2×2449631318957² (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 2449631318957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2449631318947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1224815659478 + 1224815659479.

It is an arithmetic number, because the mean of its divisors is an integer number (1224815659479).

Almost surely, 2^{2449631318957} is an apocalyptic number.

It is an amenable number.

2449631318957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2449631318957 is an equidigital number, since it uses as much as digits as its factorization.

2449631318957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39191040, while the sum is 62.

The spelling of 2449631318957 in words is "two trillion, four hundred forty-nine billion, six hundred thirty-one million, three hundred eighteen thousand, nine hundred fifty-seven".