90530516789 has 32 divisors (see below), whose sum is σ = 97440537600. Its totient is φ = 83812764672.

The previous prime is 90530516761. The next prime is 90530516849. The reversal of 90530516789 is 98761503509.

It is a cyclic number.

It is not a de Polignac number, because 90530516789 - 2²⁴ = 90513739573 is a prime.

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 90530516789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90530516749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165503414 + ... + 165503960.

It is an arithmetic number, because the mean of its divisors is an integer number (3045016800).

Almost surely, 2^90530516789 is an apocalyptic number.

It is an amenable number.

90530516789 is a deficient number, since it is larger than the sum of its proper divisors (6910020811).

90530516789 is a wasteful number, since it uses less digits than its factorization.

90530516789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229.

The product of its (nonzero) digits is 2041200, while the sum is 53.

The spelling of 90530516789 in words is "ninety billion, five hundred thirty million, five hundred sixteen thousand, seven hundred eighty-nine".