19436574344 has 16 divisors (see below), whose sum is σ = 39756629520. Its totient is φ = 8834806480.

The previous prime is 19436574341. The next prime is 19436574359. The reversal of 19436574344 is 44347563491.

It is a junction number, because it is equal to n+sod(n) for n = 19436574292 and 19436574301.

It is not an unprimeable number, because it can be changed into a prime (19436574341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110434994 + ... + 110435169.

It is an arithmetic number, because the mean of its divisors is an integer number (2484789345).

Almost surely, 2^19436574344 is an apocalyptic number.

It is an amenable number.

19436574344 is an abundant number, since it is smaller than the sum of its proper divisors (20320055176).

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

19436574344 is a wasteful number, since it uses less digits than its factorization.

19436574344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220870180 (or 220870176 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 50.

The spelling of 19436574344 in words is "nineteen billion, four hundred thirty-six million, five hundred seventy-four thousand, three hundred forty-four".