8500390516 has 6 divisors (see below), whose sum is σ = 14875683410. Its totient is φ = 4250195256.

The previous prime is 8500390513. The next prime is 8500390517. The reversal of 8500390516 is 6150930058.

It can be written as a sum of positive squares in only one way, i.e., 5959222416 + 2541168100 = 77196^2 + 50410^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8500390513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062548811 + ... + 1062548818.

Almost surely, 2^8500390516 is an apocalyptic number.

It is an amenable number.

8500390516 is a deficient number, since it is larger than the sum of its proper divisors (6375292894).

8500390516 is a wasteful number, since it uses less digits than its factorization.

8500390516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125097633 (or 2125097631 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 8500390516 is about 92197.5624189707. The cubic root of 8500390516 is about 2040.8588044335.

The spelling of 8500390516 in words is "eight billion, five hundred million, three hundred ninety thousand, five hundred sixteen".