19199064460 has 48 divisors (see below), whose sum is σ = 41830145280. Its totient is φ = 7394123520.

The previous prime is 19199064457. The next prime is 19199064481. The reversal of 19199064460 is 6446099191.

It is a super-2 number, since 2×19199064460² (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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43546 + ... + 200734.

It is an arithmetic number, because the mean of its divisors is an integer number (871461360).

Almost surely, 2^19199064460 is an apocalyptic number.

19199064460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19199064460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20915072640).

19199064460 is an abundant number, since it is smaller than the sum of its proper divisors (22631080820).

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

19199064460 is a wasteful number, since it uses less digits than its factorization.

19199064460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157426 (or 157424 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 49.

The spelling of 19199064460 in words is "nineteen billion, one hundred ninety-nine million, sixty-four thousand, four hundred sixty".