19881482334 has 32 divisors (see below), whose sum is σ = 45449431296. Its totient is φ = 5679668160.

The previous prime is 19881482321. The next prime is 19881482359. The reversal of 19881482334 is 43328418891.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339594 + ... + 393810.

It is an arithmetic number, because the mean of its divisors is an integer number (1420294728).

Almost surely, 2^19881482334 is an apocalyptic number.

19881482334 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19881482334 is an abundant number, since it is smaller than the sum of its proper divisors (25567948962).

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

19881482334 is a wasteful number, since it uses less digits than its factorization.

19881482334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62960.

The product of its digits is 1327104, while the sum is 51.

The spelling of 19881482334 in words is "nineteen billion, eight hundred eighty-one million, four hundred eighty-two thousand, three hundred thirty-four".