19244362745 has 16 divisors (see below), whose sum is σ = 24074219520. Its totient is φ = 14751336000.

The previous prime is 19244362679. The next prime is 19244362747. The reversal of 19244362745 is 54726344291.

It is not a de Polignac number, because 19244362745 - 2¹⁶ = 19244297209 is a prime.

It is a super-2 number, since 2×19244362745² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19244362745.

It is not an unprimeable number, because it can be changed into a prime (19244362747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 598985 + ... + 630294.

It is an arithmetic number, because the mean of its divisors is an integer number (1504638720).

Almost surely, 2^19244362745 is an apocalyptic number.

It is an amenable number.

19244362745 is a deficient number, since it is larger than the sum of its proper divisors (4829856775).

19244362745 is a wasteful number, since it uses less digits than its factorization.

19244362745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229416.

The product of its digits is 1451520, while the sum is 47.

The spelling of 19244362745 in words is "nineteen billion, two hundred forty-four million, three hundred sixty-two thousand, seven hundred forty-five".