19344150557 has 2 divisors, whose sum is σ = 19344150558. Its totient is φ = 19344150556.

The previous prime is 19344150533. The next prime is 19344150559. The reversal of 19344150557 is 75505144391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19330453156 + 13697401 = 139034^2 + 3701^2 .

It is a cyclic number.

It is not a de Polignac number, because 19344150557 - 2¹² = 19344146461 is a prime.

Together with 19344150559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19344150559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9672075278 + 9672075279.

It is an arithmetic number, because the mean of its divisors is an integer number (9672075279).

Almost surely, 2^19344150557 is an apocalyptic number.

It is an amenable number.

19344150557 is a deficient number, since it is larger than the sum of its proper divisors (1).

19344150557 is an equidigital number, since it uses as much as digits as its factorization.

19344150557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 19344150557 in words is "nineteen billion, three hundred forty-four million, one hundred fifty thousand, five hundred fifty-seven".