19882931427 has 24 divisors (see below), whose sum is σ = 29428880208. Its totient is φ = 12928204800.

The previous prime is 19882931413. The next prime is 19882931447. The reversal of 19882931427 is 72413928891.

19882931427 is a `hidden beast` number, since 198 + 8 + 29 + 3 + 1 + 427 = 666.

It is not a de Polignac number, because 19882931427 - 2⁶ = 19882931363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19882931447) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1843683 + ... + 1854435.

It is an arithmetic number, because the mean of its divisors is an integer number (1226203342).

Almost surely, 2^19882931427 is an apocalyptic number.

19882931427 is a deficient number, since it is larger than the sum of its proper divisors (9545948781).

19882931427 is a wasteful number, since it uses less digits than its factorization.

19882931427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15811 (or 15808 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The spelling of 19882931427 in words is "nineteen billion, eight hundred eighty-two million, nine hundred thirty-one thousand, four hundred twenty-seven".