493983396855 has 96 divisors (see below), whose sum is σ = 958038419520. Its totient is φ = 242738104320.

The previous prime is 493983396847. The next prime is 493983396857. The reversal of 493983396855 is 558693389394.

493983396855 is a `hidden beast` number, since 49 + 398 + 33 + 96 + 85 + 5 = 666.

It is not a de Polignac number, because 493983396855 - 2³ = 493983396847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493983396857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8516191 + ... + 8573999.

It is an arithmetic number, because the mean of its divisors is an integer number (9979566870).

Almost surely, 2^493983396855 is an apocalyptic number.

493983396855 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

493983396855 is a deficient number, since it is larger than the sum of its proper divisors (464055022665).

493983396855 is a wasteful number, since it uses less digits than its factorization.

493983396855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58383 (or 58371 counting only the distinct ones).

The product of its digits is 755827200, while the sum is 72.

The spelling of 493983396855 in words is "four hundred ninety-three billion, nine hundred eighty-three million, three hundred ninety-six thousand, eight hundred fifty-five".