20142859799 has 16 divisors (see below), whose sum is σ = 21167308800. Its totient is φ = 19131203520.

The previous prime is 20142859787. The next prime is 20142859831. The reversal of 20142859799 is 99795824102.

It is a cyclic number.

It is not a de Polignac number, because 20142859799 - 2¹⁶ = 20142794263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20142859999) 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 15 ways as a sum of consecutive naturals, for example, 2380394 + ... + 2388840.

It is an arithmetic number, because the mean of its divisors is an integer number (1322956800).

Almost surely, 2^20142859799 is an apocalyptic number.

20142859799 is a deficient number, since it is larger than the sum of its proper divisors (1024449001).

20142859799 is a wasteful number, since it uses less digits than its factorization.

20142859799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9190.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 20142859799 in words is "twenty billion, one hundred forty-two million, eight hundred fifty-nine thousand, seven hundred ninety-nine".