31592729389093 has 2 divisors, whose sum is σ = 31592729389094. Its totient is φ = 31592729389092.

The previous prime is 31592729389073. The next prime is 31592729389127. The reversal of 31592729389093 is 39098392729513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24087502041604 + 7505227347489 = 4907902^2 + 2739567^2 .

It is a cyclic number.

It is not a de Polignac number, because 31592729389093 - 2⁹ = 31592729388581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31592729389043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15796364694546 + 15796364694547.

It is an arithmetic number, because the mean of its divisors is an integer number (15796364694547).

Almost surely, 2^{31592729389093} is an apocalyptic number.

It is an amenable number.

31592729389093 is a deficient number, since it is larger than the sum of its proper divisors (1).

31592729389093 is an equidigital number, since it uses as much as digits as its factorization.

31592729389093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 198404640, while the sum is 70.

The spelling of 31592729389093 in words is "thirty-one trillion, five hundred ninety-two billion, seven hundred twenty-nine million, three hundred eighty-nine thousand, ninety-three".