91097687308953 has 8 divisors (see below), whose sum is σ = 130806935623168. Its totient is φ = 56060115267024.

The previous prime is 91097687308921. The next prime is 91097687308961. The reversal of 91097687308953 is 35980378679019.

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

It is not a de Polignac number, because 91097687308953 - 2⁵ = 91097687308921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91097687308753) 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, 1167919068025 + ... + 1167919068102.

It is an arithmetic number, because the mean of its divisors is an integer number (16350866952896).

Almost surely, 2^{91097687308953} is an apocalyptic number.

It is an amenable number.

91097687308953 is a deficient number, since it is larger than the sum of its proper divisors (39709248314215).

91097687308953 is a wasteful number, since it uses less digits than its factorization.

91097687308953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335838136143.

The product of its (nonzero) digits is 617258880, while the sum is 75.

The spelling of 91097687308953 in words is "ninety-one trillion, ninety-seven billion, six hundred eighty-seven million, three hundred eight thousand, nine hundred fifty-three".