90380933249 has 4 divisors (see below), whose sum is σ = 90653987760. Its totient is φ = 90107878740.

The previous prime is 90380933221. The next prime is 90380933297. The reversal of 90380933249 is 94233908309.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90380933249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 90380933197 and 90380933206.

It is not an unprimeable number, because it can be changed into a prime (90380936249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136526759 + ... + 136527420.

It is an arithmetic number, because the mean of its divisors is an integer number (22663496940).

Almost surely, 2^90380933249 is an apocalyptic number.

It is an amenable number.

90380933249 is a deficient number, since it is larger than the sum of its proper divisors (273054511).

90380933249 is a wasteful number, since it uses less digits than its factorization.

90380933249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273054510.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The spelling of 90380933249 in words is "ninety billion, three hundred eighty million, nine hundred thirty-three thousand, two hundred forty-nine".