19875320042 has 16 divisors (see below), whose sum is σ = 29942589600. Its totient is φ = 9894486000.

The previous prime is 19875320033. The next prime is 19875320053. The reversal of 19875320042 is 24002357891.

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, 1871684 + ... + 1882272.

It is an arithmetic number, because the mean of its divisors is an integer number (1871411850).

Almost surely, 2^19875320042 is an apocalyptic number.

19875320042 is a deficient number, since it is larger than the sum of its proper divisors (10067269558).

19875320042 is a wasteful number, since it uses less digits than its factorization.

19875320042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14581.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 19875320042 in words is "nineteen billion, eight hundred seventy-five million, three hundred twenty thousand, forty-two".