19800241879 has 8 divisors (see below), whose sum is σ = 21611071872. Its totient is φ = 17991213240.

The previous prime is 19800241861. The next prime is 19800241883. The reversal of 19800241879 is 97814200891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19800241879 - 2¹⁷ = 19800110807 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 (19800247879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427299 + ... + 471364.

It is an arithmetic number, because the mean of its divisors is an integer number (2701383984).

Almost surely, 2^19800241879 is an apocalyptic number.

19800241879 is a deficient number, since it is larger than the sum of its proper divisors (1810829993).

19800241879 is a wasteful number, since it uses less digits than its factorization.

19800241879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900677.

The product of its (nonzero) digits is 290304, while the sum is 49.

The spelling of 19800241879 in words is "nineteen billion, eight hundred million, two hundred forty-one thousand, eight hundred seventy-nine".