19942831296 has 84 divisors (see below), whose sum is σ = 57186254944. Its totient is φ = 6644851200.

The previous prime is 19942831277. The next prime is 19942831313. The reversal of 19942831296 is 69213824991.

19942831296 is a `hidden beast` number, since 1 + 99 + 428 + 3 + 129 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1757481 + ... + 1768791.

Almost surely, 2^19942831296 is an apocalyptic number.

19942831296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19942831296 is an abundant number, since it is smaller than the sum of its proper divisors (37243423648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19942831296 is a wasteful number, since it uses less digits than its factorization.

19942831296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14390 (or 14377 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The spelling of 19942831296 in words is "nineteen billion, nine hundred forty-two million, eight hundred thirty-one thousand, two hundred ninety-six".