31639475089753 has 2 divisors, whose sum is σ = 31639475089754. Its totient is φ = 31639475089752.

The previous prime is 31639475089699. The next prime is 31639475089771. The reversal of 31639475089753 is 35798057493613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16052747401744 + 15586727688009 = 4006588^2 + 3948003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31639475089753 is a prime.

It is not a weakly prime, because it can be changed into another prime (31639475089253) 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, 15819737544876 + 15819737544877.

It is an arithmetic number, because the mean of its divisors is an integer number (15819737544877).

Almost surely, 2^{31639475089753} is an apocalyptic number.

It is an amenable number.

31639475089753 is a deficient number, since it is larger than the sum of its proper divisors (1).

31639475089753 is an equidigital number, since it uses as much as digits as its factorization.

31639475089753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 514382400, while the sum is 70.

The spelling of 31639475089753 in words is "thirty-one trillion, six hundred thirty-nine billion, four hundred seventy-five million, eighty-nine thousand, seven hundred fifty-three".