91267980097 has 8 divisors (see below), whose sum is σ = 104413032576. Its totient is φ = 78149620032.

The previous prime is 91267980091. The next prime is 91267980101. The reversal of 91267980097 is 79008976219.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91267980097 - 2¹⁹ = 91267455809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91267980091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6665773 + ... + 6679450.

It is an arithmetic number, because the mean of its divisors is an integer number (13051629072).

Almost surely, 2^91267980097 is an apocalyptic number.

It is an amenable number.

91267980097 is a deficient number, since it is larger than the sum of its proper divisors (13145052479).

91267980097 is a wasteful number, since it uses less digits than its factorization.

91267980097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13346207.

The product of its (nonzero) digits is 3429216, while the sum is 58.

The spelling of 91267980097 in words is "ninety-one billion, two hundred sixty-seven million, nine hundred eighty thousand, ninety-seven".