31406106593 has 2 divisors, whose sum is σ = 31406106594. Its totient is φ = 31406106592.

The previous prime is 31406106547. The next prime is 31406106623. The reversal of 31406106593 is 39560160413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17117012224 + 14289094369 = 130832^2 + 119537^2 .

It is a cyclic number.

It is not a de Polignac number, because 31406106593 - 2¹⁰ = 31406105569 is a prime.

It is not a weakly prime, because it can be changed into another prime (31406106503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15703053296 + 15703053297.

It is an arithmetic number, because the mean of its divisors is an integer number (15703053297).

Almost surely, 2^31406106593 is an apocalyptic number.

It is an amenable number.

31406106593 is a deficient number, since it is larger than the sum of its proper divisors (1).

31406106593 is an equidigital number, since it uses as much as digits as its factorization.

31406106593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 31406106593 in words is "thirty-one billion, four hundred six million, one hundred six thousand, five hundred ninety-three".