19056737137 has 2 divisors, whose sum is σ = 19056737138. Its totient is φ = 19056737136.

The previous prime is 19056737131. The next prime is 19056737149. The reversal of 19056737137 is 73173765091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12888833841 + 6167903296 = 113529^2 + 78536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19056737137 is a prime.

It is not a weakly prime, because it can be changed into another prime (19056737131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9528368568 + 9528368569.

It is an arithmetic number, because the mean of its divisors is an integer number (9528368569).

Almost surely, 2^19056737137 is an apocalyptic number.

It is an amenable number.

19056737137 is a deficient number, since it is larger than the sum of its proper divisors (1).

19056737137 is an equidigital number, since it uses as much as digits as its factorization.

19056737137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 833490, while the sum is 49.

The spelling of 19056737137 in words is "nineteen billion, fifty-six million, seven hundred thirty-seven thousand, one hundred thirty-seven".