31536411463489 has 2 divisors, whose sum is σ = 31536411463490. Its totient is φ = 31536411463488.

The previous prime is 31536411463481. The next prime is 31536411463549. The reversal of 31536411463489 is 98436411463513.

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., 28009677701889 + 3526733761600 = 5292417^2 + 1877960^2 .

It is a cyclic number.

It is not a de Polignac number, because 31536411463489 - 2³ = 31536411463481 is a prime.

It is not a weakly prime, because it can be changed into another prime (31536411463481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15768205731744 + 15768205731745.

It is an arithmetic number, because the mean of its divisors is an integer number (15768205731745).

Almost surely, 2^{31536411463489} is an apocalyptic number.

It is an amenable number.

31536411463489 is a deficient number, since it is larger than the sum of its proper divisors (1).

31536411463489 is an equidigital number, since it uses as much as digits as its factorization.

31536411463489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22394880, while the sum is 58.

The spelling of 31536411463489 in words is "thirty-one trillion, five hundred thirty-six billion, four hundred eleven million, four hundred sixty-three thousand, four hundred eighty-nine".