19948282138 has 8 divisors (see below), whose sum is σ = 29956313088. Its totient is φ = 9962844444.

The previous prime is 19948282129. The next prime is 19948282253. The reversal of 19948282138 is 83128284991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5646106 + ... + 5649637.

It is an arithmetic number, because the mean of its divisors is an integer number (3744539136).

Almost surely, 2^19948282138 is an apocalyptic number.

19948282138 is a deficient number, since it is larger than the sum of its proper divisors (10008030950).

19948282138 is a wasteful number, since it uses less digits than its factorization.

19948282138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11296628.

The product of its digits is 1990656, while the sum is 55.

The spelling of 19948282138 in words is "nineteen billion, nine hundred forty-eight million, two hundred eighty-two thousand, one hundred thirty-eight".