19679334234 has 48 divisors (see below), whose sum is σ = 45882933408. Its totient is φ = 5610587808.

The previous prime is 19679334209. The next prime is 19679334247. The reversal of 19679334234 is 43243397691.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65632 + ... + 208964.

It is an arithmetic number, because the mean of its divisors is an integer number (955894446).

Almost surely, 2^19679334234 is an apocalyptic number.

19679334234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19679334234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22941466704).

19679334234 is an abundant number, since it is smaller than the sum of its proper divisors (26203599174).

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

19679334234 is a wasteful number, since it uses less digits than its factorization.

19679334234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143819 (or 143812 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 51.

The spelling of 19679334234 in words is "nineteen billion, six hundred seventy-nine million, three hundred thirty-four thousand, two hundred thirty-four".