19144035442 has 32 divisors (see below), whose sum is σ = 33404762880. Its totient is φ = 8058845760.

The previous prime is 19144035419. The next prime is 19144035451. The reversal of 19144035442 is 24453044191.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231588 + ... + 303184.

It is an arithmetic number, because the mean of its divisors is an integer number (1043898840).

Almost surely, 2^19144035442 is an apocalyptic number.

19144035442 is a deficient number, since it is larger than the sum of its proper divisors (14260727438).

19144035442 is a wasteful number, since it uses less digits than its factorization.

19144035442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71946.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 19144035442 in words is "nineteen billion, one hundred forty-four million, thirty-five thousand, four hundred forty-two".