19281393142 has 16 divisors (see below), whose sum is σ = 31585366800. Its totient is φ = 8754826240.

The previous prime is 19281393119. The next prime is 19281393151. The reversal of 19281393142 is 24139318291.

It is a congruent 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, 451267 + ... + 492142.

It is an arithmetic number, because the mean of its divisors is an integer number (1974085425).

Almost surely, 2^19281393142 is an apocalyptic number.

19281393142 is a deficient number, since it is larger than the sum of its proper divisors (12303973658).

19281393142 is a wasteful number, since it uses less digits than its factorization.

19281393142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944351.

The product of its digits is 93312, while the sum is 43.

The spelling of 19281393142 in words is "nineteen billion, two hundred eighty-one million, three hundred ninety-three thousand, one hundred forty-two".