90909550001 has 8 divisors (see below), whose sum is σ = 94072968000. Its totient is φ = 87748039120.

The previous prime is 90909549971. The next prime is 90909550007. The reversal of 90909550001 is 10005590909.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90909550001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90909550007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379445 + ... + 570786.

It is an arithmetic number, because the mean of its divisors is an integer number (11759121000).

Almost surely, 2^90909550001 is an apocalyptic number.

It is an amenable number.

90909550001 is a deficient number, since it is larger than the sum of its proper divisors (3163417999).

90909550001 is a wasteful number, since it uses less digits than its factorization.

90909550001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953559.

The product of its (nonzero) digits is 18225, while the sum is 38.

The spelling of 90909550001 in words is "ninety billion, nine hundred nine million, five hundred fifty thousand, one".