91532932709 has 2 divisors, whose sum is σ = 91532932710. Its totient is φ = 91532932708.

The previous prime is 91532932681. The next prime is 91532932717. The reversal of 91532932709 is 90723923519.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90751562500 + 781370209 = 301250^2 + 27953^2 .

It is a cyclic number.

It is not a de Polignac number, because 91532932709 - 2²⁸ = 91264497253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91532932759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45766466354 + 45766466355.

It is an arithmetic number, because the mean of its divisors is an integer number (45766466355).

Almost surely, 2^91532932709 is an apocalyptic number.

It is an amenable number.

91532932709 is a deficient number, since it is larger than the sum of its proper divisors (1).

91532932709 is an equidigital number, since it uses as much as digits as its factorization.

91532932709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 918540, while the sum is 50.

The spelling of 91532932709 in words is "ninety-one billion, five hundred thirty-two million, nine hundred thirty-two thousand, seven hundred nine".