19744225051 has 8 divisors (see below), whose sum is σ = 20906884944. Its totient is φ = 18581702400.

The previous prime is 19744225043. The next prime is 19744225057. The reversal of 19744225051 is 15052244791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19744225051 - 2³ = 19744225043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19744224995 and 19744225013.

It is not an unprimeable number, because it can be changed into a prime (19744225057) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 497751 + ... + 535951.

It is an arithmetic number, because the mean of its divisors is an integer number (2613360618).

Almost surely, 2^19744225051 is an apocalyptic number.

19744225051 is a deficient number, since it is larger than the sum of its proper divisors (1162659893).

19744225051 is a wasteful number, since it uses less digits than its factorization.

19744225051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68621.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 19744225051 in words is "nineteen billion, seven hundred forty-four million, two hundred twenty-five thousand, fifty-one".