90910010001 has 8 divisors (see below), whose sum is σ = 122325396160. Its totient is φ = 60050648592.

The previous prime is 90910009987. The next prime is 90910010003. The reversal of 90910010001 is 10001001909.

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

It is not a de Polignac number, because 90910010001 - 2⁶ = 90910009937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90910010001.

It is not an unprimeable number, because it can be changed into a prime (90910010003) 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, 139005805 + ... + 139006458.

It is an arithmetic number, because the mean of its divisors is an integer number (15290674520).

Almost surely, 2^90910010001 is an apocalyptic number.

It is an amenable number.

90910010001 is a deficient number, since it is larger than the sum of its proper divisors (31415386159).

90910010001 is a wasteful number, since it uses less digits than its factorization.

90910010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278012375.

The product of its (nonzero) digits is 81, while the sum is 21.

The spelling of 90910010001 in words is "ninety billion, nine hundred ten million, ten thousand, one".