19462845816 has 96 divisors (see below), whose sum is σ = 54810288000. Its totient is φ = 6232412160.

The previous prime is 19462845781. The next prime is 19462845887. The reversal of 19462845816 is 61854826491.

19462845816 is a `hidden beast` number, since 1 + 9 + 4 + 628 + 4 + 5 + 8 + 1 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 273960 + ... + 337608.

It is an arithmetic number, because the mean of its divisors is an integer number (570940500).

Almost surely, 2^19462845816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19462845816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27405144000).

19462845816 is an abundant number, since it is smaller than the sum of its proper divisors (35347442184).

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

19462845816 is a wasteful number, since it uses less digits than its factorization.

19462845816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63829 (or 63822 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The spelling of 19462845816 in words is "nineteen billion, four hundred sixty-two million, eight hundred forty-five thousand, eight hundred sixteen".