19051046808 has 16 divisors (see below), whose sum is σ = 47627617080. Its totient is φ = 6350348928.

The previous prime is 19051046801. The next prime is 19051046873. The reversal of 19051046808 is 80864015091.

It is a self number, because there is not a number n which added to its sum of digits gives 19051046808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19051046801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396896785 + ... + 396896832.

Almost surely, 2^19051046808 is an apocalyptic number.

It is an amenable number.

19051046808 is an abundant number, since it is smaller than the sum of its proper divisors (28576570272).

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

19051046808 is a wasteful number, since it uses less digits than its factorization.

19051046808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793793626 (or 793793622 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 19051046808 in words is "nineteen billion, fifty-one million, forty-six thousand, eight hundred eight".