19361059057 has 2 divisors, whose sum is σ = 19361059058. Its totient is φ = 19361059056.

The previous prime is 19361059027. The next prime is 19361059103. The reversal of 19361059057 is 75095016391.

It is an a-pointer prime, because the next prime (19361059103) can be obtained adding 19361059057 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11474908641 + 7886150416 = 107121^2 + 88804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19361059057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19361058998 and 19361059016.

It is not a weakly prime, because it can be changed into another prime (19361059027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9680529528 + 9680529529.

It is an arithmetic number, because the mean of its divisors is an integer number (9680529529).

Almost surely, 2^19361059057 is an apocalyptic number.

It is an amenable number.

19361059057 is a deficient number, since it is larger than the sum of its proper divisors (1).

19361059057 is an equidigital number, since it uses as much as digits as its factorization.

19361059057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 255150, while the sum is 46.

The spelling of 19361059057 in words is "nineteen billion, three hundred sixty-one million, fifty-nine thousand, fifty-seven".