52985781899 has 4 divisors (see below), whose sum is σ = 52998309360. Its totient is φ = 52973254440.

The previous prime is 52985781853. The next prime is 52985781907. The reversal of 52985781899 is 99818758925.

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 52985781899 - 2⁸ = 52985781643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52985783899) 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 in 3 ways as a sum of consecutive naturals, for example, 6257384 + ... + 6265845.

It is an arithmetic number, because the mean of its divisors is an integer number (13249577340).

Almost surely, 2^52985781899 is an apocalyptic number.

52985781899 is a deficient number, since it is larger than the sum of its proper divisors (12527461).

52985781899 is a wasteful number, since it uses less digits than its factorization.

52985781899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12527460.

The product of its digits is 130636800, while the sum is 71.

The spelling of 52985781899 in words is "fifty-two billion, nine hundred eighty-five million, seven hundred eighty-one thousand, eight hundred ninety-nine".