19800582039 has 36 divisors (see below), whose sum is σ = 34417641960. Its totient is φ = 10924452000.

The previous prime is 19800582037. The next prime is 19800582047. The reversal of 19800582039 is 93028500891.

It is a happy number.

It is not a de Polignac number, because 19800582039 - 2¹ = 19800582037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19800581985 and 19800582003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19800582037) 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 35 ways as a sum of consecutive naturals, for example, 761337 + ... + 786914.

It is an arithmetic number, because the mean of its divisors is an integer number (956045610).

Almost surely, 2^19800582039 is an apocalyptic number.

19800582039 is a deficient number, since it is larger than the sum of its proper divisors (14617059921).

19800582039 is a wasteful number, since it uses less digits than its factorization.

19800582039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548300 (or 1548290 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 19800582039 in words is "nineteen billion, eight hundred million, five hundred eighty-two thousand, thirty-nine".