90219256889 has 8 divisors (see below), whose sum is σ = 91498983552. Its totient is φ = 88939781280.

The previous prime is 90219256847. The next prime is 90219256909. The reversal of 90219256889 is 98865291209.

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 90219256889 - 2²⁰ = 90218208313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90219256789) 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, 731852 + ... + 846194.

It is an arithmetic number, because the mean of its divisors is an integer number (11437372944).

Almost surely, 2^90219256889 is an apocalyptic number.

It is an amenable number.

90219256889 is a deficient number, since it is larger than the sum of its proper divisors (1279726663).

90219256889 is a wasteful number, since it uses less digits than its factorization.

90219256889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125527.

The product of its (nonzero) digits is 5598720, while the sum is 59.

The spelling of 90219256889 in words is "ninety billion, two hundred nineteen million, two hundred fifty-six thousand, eight hundred eighty-nine".