19048406636 has 24 divisors (see below), whose sum is σ = 40337803296. Its totient is φ = 7683390720.

The previous prime is 19048406627. The next prime is 19048406651. The reversal of 19048406636 is 63660484091.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20008355 + ... + 20009306.

It is an arithmetic number, because the mean of its divisors is an integer number (1680741804).

Almost surely, 2^19048406636 is an apocalyptic number.

It is an amenable number.

19048406636 is an abundant number, since it is smaller than the sum of its proper divisors (21289396660).

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

19048406636 is a wasteful number, since it uses less digits than its factorization.

19048406636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40017689 (or 40017687 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 19048406636 in words is "nineteen billion, forty-eight million, four hundred six thousand, six hundred thirty-six".