19143052442 has 8 divisors (see below), whose sum is σ = 28758153600. Its totient is φ = 9557001244.

The previous prime is 19143052393. The next prime is 19143052459. The reversal of 19143052442 is 24425034191.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7260842 + ... + 7263477.

It is an arithmetic number, because the mean of its divisors is an integer number (3594769200).

Almost surely, 2^19143052442 is an apocalyptic number.

19143052442 is a deficient number, since it is larger than the sum of its proper divisors (9615101158).

19143052442 is a wasteful number, since it uses less digits than its factorization.

19143052442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14524980.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 19143052442 in words is "nineteen billion, one hundred forty-three million, fifty-two thousand, four hundred forty-two".