19108127049 has 16 divisors (see below), whose sum is σ = 27796165824. Its totient is φ = 11579630400.

The previous prime is 19108127029. The next prime is 19108127063. The reversal of 19108127049 is 94072180191.

It is not a de Polignac number, because 19108127049 - 2²¹ = 19106029897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19108127049.

It is not an unprimeable number, because it can be changed into a prime (19108127009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498327 + ... + 535299.

It is an arithmetic number, because the mean of its divisors is an integer number (1737260364).

Almost surely, 2^19108127049 is an apocalyptic number.

It is an amenable number.

19108127049 is a deficient number, since it is larger than the sum of its proper divisors (8688038775).

19108127049 is a wasteful number, since it uses less digits than its factorization.

19108127049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52648.

The product of its (nonzero) digits is 36288, while the sum is 42.

It can be divided in two parts, 1910812 and 7049, that added together give a triangular number (1917861 = T₁₉₅₈).

The spelling of 19108127049 in words is "nineteen billion, one hundred eight million, one hundred twenty-seven thousand, forty-nine".