10000090091 has 8 divisors (see below), whose sum is σ = 10067020800. Its totient is φ = 9933326568.

The previous prime is 10000090073. The next prime is 10000090103. The reversal of 10000090091 is 19009000001.

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 10000090091 - 2³⁰ = 8926348267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10000090021) 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, 79400 + ... + 162186.

It is an arithmetic number, because the mean of its divisors is an integer number (1258377600).

Almost surely, 2^10000090091 is an apocalyptic number.

10000090091 is a deficient number, since it is larger than the sum of its proper divisors (66930709).

10000090091 is an equidigital number, since it uses as much as digits as its factorization.

10000090091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83593.

The product of its (nonzero) digits is 81, while the sum is 20.

Adding to 10000090091 its reverse (19009000001), we get a palindrome (29009090092).

It can be divided in two parts, 100000 and 90091, that added together give a palindrome (190091).

The spelling of 10000090091 in words is "ten billion, ninety thousand, ninety-one".