90809611073 has 16 divisors (see below), whose sum is σ = 91808640000. Its totient is φ = 89816724480.

The previous prime is 90809611069. The next prime is 90809611111. The reversal of 90809611073 is 37011690809.

It is a cyclic number.

It is not a de Polignac number, because 90809611073 - 2² = 90809611069 is a prime.

It is a super-2 number, since 2×90809611073² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90809611003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43016288 + ... + 43018398.

It is an arithmetic number, because the mean of its divisors is an integer number (5738040000).

Almost surely, 2^90809611073 is an apocalyptic number.

It is an amenable number.

90809611073 is a deficient number, since it is larger than the sum of its proper divisors (999028927).

90809611073 is a wasteful number, since it uses less digits than its factorization.

90809611073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352.

The product of its (nonzero) digits is 81648, while the sum is 44.

The spelling of 90809611073 in words is "ninety billion, eight hundred nine million, six hundred eleven thousand, seventy-three".