53899113643 has 4 divisors (see below), whose sum is σ = 53986188760. Its totient is φ = 53812038528.

The previous prime is 53899113623. The next prime is 53899113659. The reversal of 53899113643 is 34631199835.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53899113643 - 2²⁵ = 53865559211 is a prime.

It is a super-3 number, since 3×53899113643³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53899113623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43536630 + ... + 43537867.

It is an arithmetic number, because the mean of its divisors is an integer number (13496547190).

Almost surely, 2^53899113643 is an apocalyptic number.

53899113643 is a deficient number, since it is larger than the sum of its proper divisors (87075117).

53899113643 is an equidigital number, since it uses as much as digits as its factorization.

53899113643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87075116.

The product of its digits is 2099520, while the sum is 52.

The spelling of 53899113643 in words is "fifty-three billion, eight hundred ninety-nine million, one hundred thirteen thousand, six hundred forty-three".