90865433321 has 8 divisors (see below), whose sum is σ = 100241791944. Its totient is φ = 81830033280.

The previous prime is 90865433303. The next prime is 90865433333. The reversal of 90865433321 is 12333456809.

It can be written as a sum of positive squares in 4 ways, for example, as 13147144921 + 77718288400 = 114661^2 + 278780^2 .

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 90865433321 - 2⁶ = 90865433257 is a prime.

It is a super-2 number, since 2×90865433321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90865435321) 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, 85239086 + ... + 85240151.

It is an arithmetic number, because the mean of its divisors is an integer number (12530223993).

Almost surely, 2^90865433321 is an apocalyptic number.

It is an amenable number.

90865433321 is a deficient number, since it is larger than the sum of its proper divisors (9376358623).

90865433321 is a wasteful number, since it uses less digits than its factorization.

90865433321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170479291.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 90865433321 in words is "ninety billion, eight hundred sixty-five million, four hundred thirty-three thousand, three hundred twenty-one".