54643802399 has 4 divisors (see below), whose sum is σ = 54751158120. Its totient is φ = 54536446680.

The previous prime is 54643802387. The next prime is 54643802417. The reversal of 54643802399 is 99320834645.

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 54643802399 - 2⁴ = 54643802383 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 54643802399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54643802699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53677097 + ... + 53678114.

It is an arithmetic number, because the mean of its divisors is an integer number (13687789530).

Almost surely, 2^54643802399 is an apocalyptic number.

54643802399 is a deficient number, since it is larger than the sum of its proper divisors (107355721).

54643802399 is a wasteful number, since it uses less digits than its factorization.

54643802399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107355720.

The product of its (nonzero) digits is 5598720, while the sum is 53.

The spelling of 54643802399 in words is "fifty-four billion, six hundred forty-three million, eight hundred two thousand, three hundred ninety-nine".