19738845037 has 2 divisors, whose sum is σ = 19738845038. Its totient is φ = 19738845036.

The previous prime is 19738845013. The next prime is 19738845053. The reversal of 19738845037 is 73054883791.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13343484196 + 6395360841 = 115514^2 + 79971^2 .

It is a cyclic number.

It is not a de Polignac number, because 19738845037 - 2²⁷ = 19604627309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19738843037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9869422518 + 9869422519.

It is an arithmetic number, because the mean of its divisors is an integer number (9869422519).

Almost surely, 2^19738845037 is an apocalyptic number.

It is an amenable number.

19738845037 is a deficient number, since it is larger than the sum of its proper divisors (1).

19738845037 is an equidigital number, since it uses as much as digits as its factorization.

19738845037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 19738845037 in words is "nineteen billion, seven hundred thirty-eight million, eight hundred forty-five thousand, thirty-seven".