90334643309 has 24 divisors (see below), whose sum is σ = 96474137760. Its totient is φ = 84564972000.

The previous prime is 90334643279. The next prime is 90334643317.

90334643309 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 90334643309 - 2⁸ = 90334643053 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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 90334643309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90334643369) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20817062 + ... + 20821400.

It is an arithmetic number, because the mean of its divisors is an integer number (4019755740).

Almost surely, 2^90334643309 is an apocalyptic number.

It is an amenable number.

90334643309 is a deficient number, since it is larger than the sum of its proper divisors (6139494451).

90334643309 is a wasteful number, since it uses less digits than its factorization.

90334643309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049 (or 5030 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 44.

The spelling of 90334643309 in words is "ninety billion, three hundred thirty-four million, six hundred forty-three thousand, three hundred nine".