19054146919 has 2 divisors, whose sum is σ = 19054146920. Its totient is φ = 19054146918.

The previous prime is 19054146913. The next prime is 19054146949. The reversal of 19054146919 is 91964145091.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19054146919 - 2¹⁷ = 19054015847 is a prime.

It is a super-2 number, since 2×19054146919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19054146913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9527073459 + 9527073460.

It is an arithmetic number, because the mean of its divisors is an integer number (9527073460).

Almost surely, 2^19054146919 is an apocalyptic number.

19054146919 is a deficient number, since it is larger than the sum of its proper divisors (1).

19054146919 is an equidigital number, since it uses as much as digits as its factorization.

19054146919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 49.

The spelling of 19054146919 in words is "nineteen billion, fifty-four million, one hundred forty-six thousand, nine hundred nineteen".