90211297009 has 8 divisors (see below), whose sum is σ = 93134427392. Its totient is φ = 87288984720.

The previous prime is 90211296997. The next prime is 90211297037. The reversal of 90211297009 is 90079211209.

It is a happy number.

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 90211297009 - 2⁷ = 90211296881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90211294009) 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, 23647 + ... + 425419.

It is an arithmetic number, because the mean of its divisors is an integer number (11641803424).

Almost surely, 2^90211297009 is an apocalyptic number.

It is an amenable number.

90211297009 is a deficient number, since it is larger than the sum of its proper divisors (2923130383).

90211297009 is a wasteful number, since it uses less digits than its factorization.

90211297009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409047.

The product of its (nonzero) digits is 20412, while the sum is 40.

The spelling of 90211297009 in words is "ninety billion, two hundred eleven million, two hundred ninety-seven thousand, nine".