19008906430079 has 4 divisors (see below), whose sum is σ = 19008926742384. Its totient is φ = 19008886117776.

The previous prime is 19008906430069. The next prime is 19008906430127. The reversal of 19008906430079 is 97003460980091.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19008906430079 - 2¹⁶ = 19008906364543 is a prime.

It is a super-2 number, since 2×19008906430079² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19008906430069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8680982 + ... + 10647875.

It is an arithmetic number, because the mean of its divisors is an integer number (4752231685596).

Almost surely, 2^{19008906430079} is an apocalyptic number.

19008906430079 is a deficient number, since it is larger than the sum of its proper divisors (20312305).

19008906430079 is an equidigital number, since it uses as much as digits as its factorization.

19008906430079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20312304.

The product of its (nonzero) digits is 2939328, while the sum is 56.

The spelling of 19008906430079 in words is "nineteen trillion, eight billion, nine hundred six million, four hundred thirty thousand, seventy-nine".