31673588785393 has 2 divisors, whose sum is σ = 31673588785394. Its totient is φ = 31673588785392.

The previous prime is 31673588785351. The next prime is 31673588785409. The reversal of 31673588785393 is 39358788537613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30101155548304 + 1572433237089 = 5486452^2 + 1253967^2 .

It is a cyclic number.

It is not a de Polignac number, because 31673588785393 - 2²⁹ = 31673051914481 is a prime.

It is not a weakly prime, because it can be changed into another prime (31673588785303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15836794392696 + 15836794392697.

It is an arithmetic number, because the mean of its divisors is an integer number (15836794392697).

Almost surely, 2^{31673588785393} is an apocalyptic number.

It is an amenable number.

31673588785393 is a deficient number, since it is larger than the sum of its proper divisors (1).

31673588785393 is an equidigital number, since it uses as much as digits as its factorization.

31673588785393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2743372800, while the sum is 76.

The spelling of 31673588785393 in words is "thirty-one trillion, six hundred seventy-three billion, five hundred eighty-eight million, seven hundred eighty-five thousand, three hundred ninety-three".