19881105348 has 96 divisors (see below), whose sum is σ = 50340326400. Its totient is φ = 6070584960.

The previous prime is 19881105337. The next prime is 19881105359. The reversal of 19881105348 is 84350118891.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19881105337) and next prime (19881105359).

It is a super-2 number, since 2×19881105348² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19881105297 and 19881105306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18222283 + ... + 18223373.

It is an arithmetic number, because the mean of its divisors is an integer number (524378400).

Almost surely, 2^19881105348 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19881105348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25170163200).

19881105348 is an abundant number, since it is smaller than the sum of its proper divisors (30459221052).

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

19881105348 is a wasteful number, since it uses less digits than its factorization.

19881105348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897 (or 1895 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 48.

The spelling of 19881105348 in words is "nineteen billion, eight hundred eighty-one million, one hundred five thousand, three hundred forty-eight".