19445199592 has 160 divisors (see below), whose sum is σ = 46896806880. Its totient is φ = 7509559680.

The previous prime is 19445199569. The next prime is 19445199623. The reversal of 19445199592 is 29599154491.

It is a super-5 number, since 5×19445199592⁵ (a number of 53 digits) contains 55555 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10736367 + ... + 10738177.

It is an arithmetic number, because the mean of its divisors is an integer number (293105043).

Almost surely, 2^19445199592 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 19445199592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23448403440).

19445199592 is an abundant number, since it is smaller than the sum of its proper divisors (27451607288).

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

19445199592 is a wasteful number, since it uses less digits than its factorization.

19445199592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901 (or 1876 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 58.

The spelling of 19445199592 in words is "nineteen billion, four hundred forty-five million, one hundred ninety-nine thousand, five hundred ninety-two".