90334819257 has 16 divisors (see below), whose sum is σ = 123351828480. Its totient is φ = 58777651472.

The previous prime is 90334819231. The next prime is 90334819273. The reversal of 90334819257 is 75291843309.

It is a cyclic number.

It is not a de Polignac number, because 90334819257 - 2¹⁸ = 90334557113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90334817257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 841683 + ... + 942920.

It is an arithmetic number, because the mean of its divisors is an integer number (7709489280).

Almost surely, 2^90334819257 is an apocalyptic number.

It is an amenable number.

90334819257 is a deficient number, since it is larger than the sum of its proper divisors (33017009223).

90334819257 is a wasteful number, since it uses less digits than its factorization.

90334819257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785012.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 90334819257 in words is "ninety billion, three hundred thirty-four million, eight hundred nineteen thousand, two hundred fifty-seven".