31252463663 has 2 divisors, whose sum is σ = 31252463664. Its totient is φ = 31252463662.

The previous prime is 31252463639. The next prime is 31252463677. The reversal of 31252463663 is 36636425213.

It is a strong prime.

It is an emirp because it is prime and its reverse (36636425213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31252463663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31252463663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31252463603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15626231831 + 15626231832.

It is an arithmetic number, because the mean of its divisors is an integer number (15626231832).

Almost surely, 2^31252463663 is an apocalyptic number.

31252463663 is a deficient number, since it is larger than the sum of its proper divisors (1).

31252463663 is an equidigital number, since it uses as much as digits as its factorization.

31252463663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 41.

Adding to 31252463663 its reverse (36636425213), we get a palindrome (67888888876).

The spelling of 31252463663 in words is "thirty-one billion, two hundred fifty-two million, four hundred sixty-three thousand, six hundred sixty-three".