91432368165773 has 4 divisors (see below), whose sum is σ = 91432801863648. Its totient is φ = 91431934467900.

The previous prime is 91432368165763. The next prime is 91432368165811. The reversal of 91432368165773 is 37756186323419.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91432368165773 - 2¹⁸ = 91432367903629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91432368165763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216532553 + ... + 216954398.

It is an arithmetic number, because the mean of its divisors is an integer number (22858200465912).

Almost surely, 2^{91432368165773} is an apocalyptic number.

It is an amenable number.

91432368165773 is a deficient number, since it is larger than the sum of its proper divisors (433697875).

91432368165773 is a wasteful number, since it uses less digits than its factorization.

91432368165773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433697874.

The product of its digits is 137168640, while the sum is 65.

The spelling of 91432368165773 in words is "ninety-one trillion, four hundred thirty-two billion, three hundred sixty-eight million, one hundred sixty-five thousand, seven hundred seventy-three".