19294418139 has 8 divisors (see below), whose sum is σ = 26051535360. Its totient is φ = 12700123176.

The previous prime is 19294418123. The next prime is 19294418159. The reversal of 19294418139 is 93181449291.

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

It is not a de Polignac number, because 19294418139 - 2⁴ = 19294418123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19294418091 and 19294418100.

It is not an unprimeable number, because it can be changed into a prime (19294418159) 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, 40705287 + ... + 40705760.

It is an arithmetic number, because the mean of its divisors is an integer number (3256441920).

Almost surely, 2^19294418139 is an apocalyptic number.

19294418139 is a deficient number, since it is larger than the sum of its proper divisors (6757117221).

19294418139 is an equidigital number, since it uses as much as digits as its factorization.

19294418139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81411129.

The product of its digits is 559872, while the sum is 51.

The spelling of 19294418139 in words is "nineteen billion, two hundred ninety-four million, four hundred eighteen thousand, one hundred thirty-nine".