19048393508 has 6 divisors (see below), whose sum is σ = 33334688646. Its totient is φ = 9524196752.

The previous prime is 19048393489. The next prime is 19048393523. The reversal of 19048393508 is 80539384091.

It can be written as a sum of positive squares in only one way, i.e., 10494363364 + 8554030144 = 102442^2 + 92488^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2381049185 + ... + 2381049192.

It is an arithmetic number, because the mean of its divisors is an integer number (5555781441).

Almost surely, 2^19048393508 is an apocalyptic number.

It is an amenable number.

19048393508 is a deficient number, since it is larger than the sum of its proper divisors (14286295138).

19048393508 is a wasteful number, since it uses less digits than its factorization.

19048393508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4762098381 (or 4762098379 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 19048393508 in words is "nineteen billion, forty-eight million, three hundred ninety-three thousand, five hundred eight".