31746500089 has 2 divisors, whose sum is σ = 31746500090. Its totient is φ = 31746500088.

The previous prime is 31746500081. The next prime is 31746500167. The reversal of 31746500089 is 98000564713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31636669689 + 109830400 = 177867^2 + 10480^2 .

It is a cyclic number.

It is not a de Polignac number, because 31746500089 - 2³ = 31746500081 is a prime.

It is not a weakly prime, because it can be changed into another prime (31746500081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15873250044 + 15873250045.

It is an arithmetic number, because the mean of its divisors is an integer number (15873250045).

Almost surely, 2^31746500089 is an apocalyptic number.

It is an amenable number.

31746500089 is a deficient number, since it is larger than the sum of its proper divisors (1).

31746500089 is an equidigital number, since it uses as much as digits as its factorization.

31746500089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 31746500089 in words is "thirty-one billion, seven hundred forty-six million, five hundred thousand, eighty-nine".