19289318401 has 4 divisors (see below), whose sum is σ = 19289658672. Its totient is φ = 19288978132.

The previous prime is 19289318393. The next prime is 19289318407. The reversal of 19289318401 is 10481398291.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19289318401 - 2³ = 19289318393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19289318407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62335 + ... + 206068.

It is an arithmetic number, because the mean of its divisors is an integer number (4822414668).

Almost surely, 2^19289318401 is an apocalyptic number.

It is an amenable number.

19289318401 is a deficient number, since it is larger than the sum of its proper divisors (340271).

19289318401 is an equidigital number, since it uses as much as digits as its factorization.

19289318401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340270.

The product of its (nonzero) digits is 124416, while the sum is 46.

The spelling of 19289318401 in words is "nineteen billion, two hundred eighty-nine million, three hundred eighteen thousand, four hundred one".