91095794311623 has 64 divisors (see below), whose sum is σ = 131470544240640. Its totient is φ = 55962907241472.

The previous prime is 91095794311619. The next prime is 91095794311631. The reversal of 91095794311623 is 32611349759019.

It is not a de Polignac number, because 91095794311623 - 2² = 91095794311619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91095794311693) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 286434711 + ... + 286752567.

It is an arithmetic number, because the mean of its divisors is an integer number (2054227253760).

Almost surely, 2^{91095794311623} is an apocalyptic number.

91095794311623 is a deficient number, since it is larger than the sum of its proper divisors (40374749929017).

91095794311623 is a wasteful number, since it uses less digits than its factorization.

91095794311623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319316.

The product of its (nonzero) digits is 11022480, while the sum is 60.

The spelling of 91095794311623 in words is "ninety-one trillion, ninety-five billion, seven hundred ninety-four million, three hundred eleven thousand, six hundred twenty-three".