19016143057 has 2 divisors, whose sum is σ = 19016143058. Its totient is φ = 19016143056.

The previous prime is 19016143051. The next prime is 19016143073. The reversal of 19016143057 is 75034161091.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13716157456 + 5299985601 = 117116^2 + 72801^2 .

It is a cyclic number.

It is not a de Polignac number, because 19016143057 - 2³ = 19016143049 is a prime.

It is a super-2 number, since 2×19016143057² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19016143051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9508071528 + 9508071529.

It is an arithmetic number, because the mean of its divisors is an integer number (9508071529).

Almost surely, 2^19016143057 is an apocalyptic number.

It is an amenable number.

19016143057 is a deficient number, since it is larger than the sum of its proper divisors (1).

19016143057 is an equidigital number, since it uses as much as digits as its factorization.

19016143057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 19016143057 in words is "nineteen billion, sixteen million, one hundred forty-three thousand, fifty-seven".