19427403745 has 8 divisors (see below), whose sum is σ = 23314273920. Its totient is φ = 15540996720.

The previous prime is 19427403719. The next prime is 19427403757. The reversal of 19427403745 is 54730472491.

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

It is not a de Polignac number, because 19427403745 - 2⁷ = 19427403617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19427403695 and 19427403704.

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 7 ways as a sum of consecutive naturals, for example, 15625 + ... + 197734.

It is an arithmetic number, because the mean of its divisors is an integer number (2914284240).

Almost surely, 2^19427403745 is an apocalyptic number.

It is an amenable number.

19427403745 is a deficient number, since it is larger than the sum of its proper divisors (3886870175).

19427403745 is a wasteful number, since it uses less digits than its factorization.

19427403745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231575.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 19427403745 in words is "nineteen billion, four hundred twenty-seven million, four hundred three thousand, seven hundred forty-five".