90090910001 has 8 divisors (see below), whose sum is σ = 94130171520. Its totient is φ = 86061837312.

The previous prime is 90090909959. The next prime is 90090910003. The reversal of 90090910001 is 10001909009.

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 90090910001 - 2²⁶ = 90023801137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90090910003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2529125 + ... + 2564498.

It is an arithmetic number, because the mean of its divisors is an integer number (11766271440).

Almost surely, 2^90090910001 is an apocalyptic number.

It is an amenable number.

90090910001 is a deficient number, since it is larger than the sum of its proper divisors (4039261519).

90090910001 is a wasteful number, since it uses less digits than its factorization.

90090910001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5094415.

The product of its (nonzero) digits is 729, while the sum is 29.

The spelling of 90090910001 in words is "ninety billion, ninety million, nine hundred ten thousand, one".