31610487413 has 2 divisors, whose sum is σ = 31610487414. Its totient is φ = 31610487412.

The previous prime is 31610487409. The next prime is 31610487421. The reversal of 31610487413 is 31478401613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30529524529 + 1080962884 = 174727^2 + 32878^2 .

It is a cyclic number.

It is not a de Polignac number, because 31610487413 - 2² = 31610487409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31610480413) 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, 15805243706 + 15805243707.

It is an arithmetic number, because the mean of its divisors is an integer number (15805243707).

Almost surely, 2^31610487413 is an apocalyptic number.

It is an amenable number.

31610487413 is a deficient number, since it is larger than the sum of its proper divisors (1).

31610487413 is an equidigital number, since it uses as much as digits as its factorization.

31610487413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 31610487413 in words is "thirty-one billion, six hundred ten million, four hundred eighty-seven thousand, four hundred thirteen".