31458485413 has 2 divisors, whose sum is σ = 31458485414. Its totient is φ = 31458485412.

The previous prime is 31458485341. The next prime is 31458485477.

31458485413 is nontrivially palindromic in base 10.

Together with previous prime (31458485341) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20130501924 + 11327983489 = 141882^2 + 106433^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 31458485413 - 2²¹ = 31456388261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31458480413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15729242706 + 15729242707.

It is an arithmetic number, because the mean of its divisors is an integer number (15729242707).

Almost surely, 2^31458485413 is an apocalyptic number.

It is an amenable number.

31458485413 is a deficient number, since it is larger than the sum of its proper divisors (1).

31458485413 is an equidigital number, since it uses as much as digits as its factorization.

31458485413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 921600, while the sum is 46.

The spelling of 31458485413 in words is "thirty-one billion, four hundred fifty-eight million, four hundred eighty-five thousand, four hundred thirteen".