19332997142 has 16 divisors (see below), whose sum is σ = 30740170032. Its totient is φ = 9087563520.

The previous prime is 19332997109. The next prime is 19332997147. The reversal of 19332997142 is 24179923391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19332997147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291959 + ... + 352002.

It is an arithmetic number, because the mean of its divisors is an integer number (1921260627).

Almost surely, 2^19332997142 is an apocalyptic number.

19332997142 is a deficient number, since it is larger than the sum of its proper divisors (11407172890).

19332997142 is a wasteful number, since it uses less digits than its factorization.

19332997142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644863.

The product of its digits is 734832, while the sum is 50.

The spelling of 19332997142 in words is "nineteen billion, three hundred thirty-two million, nine hundred ninety-seven thousand, one hundred forty-two".