19534935468 has 48 divisors (see below), whose sum is σ = 45755095680. Its totient is φ = 6486885504.

The previous prime is 19534935451. The next prime is 19534935487. The reversal of 19534935468 is 86453943591.

It is a super-2 number, since 2×19534935468² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8964003 + ... + 8966181.

It is an arithmetic number, because the mean of its divisors is an integer number (953231160).

Almost surely, 2^19534935468 is an apocalyptic number.

It is an amenable number.

19534935468 is an abundant number, since it is smaller than the sum of its proper divisors (26220160212).

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

19534935468 is a wasteful number, since it uses less digits than its factorization.

19534935468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4686 (or 4684 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 57.

The spelling of 19534935468 in words is "nineteen billion, five hundred thirty-four million, nine hundred thirty-five thousand, four hundred sixty-eight".