19116148927 has 4 divisors (see below), whose sum is σ = 19117102680. Its totient is φ = 19115195176.

The previous prime is 19116148913. The next prime is 19116148949. The reversal of 19116148927 is 72984161191.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19116148927 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19116148127) 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 3 ways as a sum of consecutive naturals, for example, 446152 + ... + 487117.

It is an arithmetic number, because the mean of its divisors is an integer number (4779275670).

Almost surely, 2^19116148927 is an apocalyptic number.

19116148927 is a deficient number, since it is larger than the sum of its proper divisors (953753).

19116148927 is an equidigital number, since it uses as much as digits as its factorization.

19116148927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953752.

The product of its digits is 217728, while the sum is 49.

The spelling of 19116148927 in words is "nineteen billion, one hundred sixteen million, one hundred forty-eight thousand, nine hundred twenty-seven".