19234443985 has 8 divisors (see below), whose sum is σ = 23825892096. Its totient is φ = 14891182320.

The previous prime is 19234443973. The next prime is 19234444003. The reversal of 19234443985 is 58934443291.

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

It is not a de Polignac number, because 19234443985 - 2¹⁷ = 19234312913 is a prime.

It is a Duffinian 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, 62046439 + ... + 62046748.

It is an arithmetic number, because the mean of its divisors is an integer number (2978236512).

Almost surely, 2^19234443985 is an apocalyptic number.

It is an amenable number.

19234443985 is a deficient number, since it is larger than the sum of its proper divisors (4591448111).

19234443985 is a wasteful number, since it uses less digits than its factorization.

19234443985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124093223.

The product of its digits is 3732480, while the sum is 52.

The spelling of 19234443985 in words is "nineteen billion, two hundred thirty-four million, four hundred forty-three thousand, nine hundred eighty-five".