19143587982 has 16 divisors (see below), whose sum is σ = 38352408192. Its totient is φ = 6370323960.

The previous prime is 19143587941. The next prime is 19143588017. The reversal of 19143587982 is 28978534191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2714194 + ... + 2721237.

It is an arithmetic number, because the mean of its divisors is an integer number (2397025512).

Almost surely, 2^19143587982 is an apocalyptic number.

19143587982 is an abundant number, since it is smaller than the sum of its proper divisors (19208820210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19143587982 is a wasteful number, since it uses less digits than its factorization.

19143587982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5436023.

The product of its digits is 4354560, while the sum is 57.

The spelling of 19143587982 in words is "nineteen billion, one hundred forty-three million, five hundred eighty-seven thousand, nine hundred eighty-two".