19290143284 has 24 divisors (see below), whose sum is σ = 34041555968. Its totient is φ = 9564065280.

The previous prime is 19290143239. The next prime is 19290143371. The reversal of 19290143284 is 48234109291.

It is a self number, because there is not a number n which added to its sum of digits gives 19290143284.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064419 + ... + 1082389.

Almost surely, 2^19290143284 is an apocalyptic number.

It is an amenable number.

19290143284 is a deficient number, since it is larger than the sum of its proper divisors (14751412684).

19290143284 is a wasteful number, since it uses less digits than its factorization.

19290143284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20215 (or 20213 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 19290143284 in words is "nineteen billion, two hundred ninety million, one hundred forty-three thousand, two hundred eighty-four".