19845826356 has 48 divisors (see below), whose sum is σ = 46832945600. Its totient is φ = 6540272640.

The previous prime is 19845826337. The next prime is 19845826361. The reversal of 19845826356 is 65362854891.

It is a junction number, because it is equal to n+sod(n) for n = 19845826296 and 19845826305.

It is a congruent number.

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, 1180095 + ... + 1196793.

Almost surely, 2^19845826356 is an apocalyptic number.

It is an amenable number.

19845826356 is an abundant number, since it is smaller than the sum of its proper divisors (26987119244).

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

19845826356 is a wasteful number, since it uses less digits than its factorization.

19845826356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17824 (or 17822 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 57.

The spelling of 19845826356 in words is "nineteen billion, eight hundred forty-five million, eight hundred twenty-six thousand, three hundred fifty-six".