19089550904 has 32 divisors (see below), whose sum is σ = 37443222000. Its totient is φ = 9112088832.

The previous prime is 19089550901. The next prime is 19089550913. The reversal of 19089550904 is 40905598091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19089550901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441614 + ... + 482909.

Almost surely, 2^19089550904 is an apocalyptic number.

It is an amenable number.

19089550904 is a deficient number, since it is larger than the sum of its proper divisors (18353671096).

19089550904 is a wasteful number, since it uses less digits than its factorization.

19089550904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924647 (or 924643 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 50.

The spelling of 19089550904 in words is "nineteen billion, eighty-nine million, five hundred fifty thousand, nine hundred four".