91610097023 has 2 divisors, whose sum is σ = 91610097024. Its totient is φ = 91610097022.

The previous prime is 91610097001. The next prime is 91610097049. The reversal of 91610097023 is 32079001619.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91610097023 - 2¹² = 91610092927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91610097223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45805048511 + 45805048512.

It is an arithmetic number, because the mean of its divisors is an integer number (45805048512).

Almost surely, 2^91610097023 is an apocalyptic number.

91610097023 is a deficient number, since it is larger than the sum of its proper divisors (1).

91610097023 is an equidigital number, since it uses as much as digits as its factorization.

91610097023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 38.

The spelling of 91610097023 in words is "ninety-one billion, six hundred ten million, ninety-seven thousand, twenty-three".