91009101000901 has 8 divisors (see below), whose sum is σ = 93157185749760. Its totient is φ = 88869837956208.

The previous prime is 91009101000863. The next prime is 91009101000911. The reversal of 91009101000901 is 10900010190019.

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 91009101000901 - 2⁷ = 91009101000773 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 (91009101000911) 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, 2205405166 + ... + 2205446431.

It is an arithmetic number, because the mean of its divisors is an integer number (11644648218720).

Almost surely, 2^{91009101000901} is an apocalyptic number.

It is an amenable number.

91009101000901 is a deficient number, since it is larger than the sum of its proper divisors (2148084748859).

91009101000901 is a wasteful number, since it uses less digits than its factorization.

91009101000901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410852083.

The product of its (nonzero) digits is 729, while the sum is 31.

The spelling of 91009101000901 in words is "ninety-one trillion, nine billion, one hundred one million, nine hundred one", and thus it is an aban number.