19305049072 has 40 divisors (see below), whose sum is σ = 37765891856. Its totient is φ = 9559420416.

The previous prime is 19305049069. The next prime is 19305049109. The reversal of 19305049072 is 27094050391.

It is a super-2 number, since 2×19305049072² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 758668 + ... + 783700.

Almost surely, 2^19305049072 is an apocalyptic number.

It is an amenable number.

19305049072 is a deficient number, since it is larger than the sum of its proper divisors (18460842784).

19305049072 is a wasteful number, since it uses less digits than its factorization.

19305049072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25505 (or 25499 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The spelling of 19305049072 in words is "nineteen billion, three hundred five million, forty-nine thousand, seventy-two".