19875429942 has 16 divisors (see below), whose sum is σ = 39764788272. Its totient is φ = 6622821920.

The previous prime is 19875429919. The next prime is 19875429949. The reversal of 19875429942 is 24992457891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19875429949) 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, 561753 + ... + 596084.

It is an arithmetic number, because the mean of its divisors is an integer number (2485299267).

Almost surely, 2^19875429942 is an apocalyptic number.

19875429942 is an abundant number, since it is smaller than the sum of its proper divisors (19889358330).

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

19875429942 is a wasteful number, since it uses less digits than its factorization.

19875429942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160703.

The product of its digits is 13063680, while the sum is 60.

The spelling of 19875429942 in words is "nineteen billion, eight hundred seventy-five million, four hundred twenty-nine thousand, nine hundred forty-two".