8453363985 has 128 divisors (see below), whose sum is σ = 17532702720. Its totient is φ = 3818880000.

The previous prime is 8453363983. The next prime is 8453364013. The reversal of 8453363985 is 5893633548.

It is a happy number.

It is not a de Polignac number, because 8453363985 - 2¹ = 8453363983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8453363981) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2598610 + ... + 2601860.

It is an arithmetic number, because the mean of its divisors is an integer number (136974240).

Almost surely, 2^8453363985 is an apocalyptic number.

8453363985 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8453363985 is an abundant number, since it is smaller than the sum of its proper divisors (9079338735).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8453363985 is a wasteful number, since it uses less digits than its factorization.

8453363985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3396 (or 3390 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 54.

The square root of 8453363985 is about 91942.1773997114. The cubic root of 8453363985 is about 2037.0883093584.

The spelling of 8453363985 in words is "eight billion, four hundred fifty-three million, three hundred sixty-three thousand, nine hundred eighty-five".