19837323105157 has 2 divisors, whose sum is σ = 19837323105158. Its totient is φ = 19837323105156.

The previous prime is 19837323105151. The next prime is 19837323105161. The reversal of 19837323105157 is 75150132373891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19289672784001 + 547650321156 = 4392001^2 + 740034^2 .

It is a cyclic number.

It is not a de Polignac number, because 19837323105157 - 2¹⁵ = 19837323072389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19837323105098 and 19837323105107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19837323105151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9918661552578 + 9918661552579.

It is an arithmetic number, because the mean of its divisors is an integer number (9918661552579).

Almost surely, 2^{19837323105157} is an apocalyptic number.

It is an amenable number.

19837323105157 is a deficient number, since it is larger than the sum of its proper divisors (1).

19837323105157 is an equidigital number, since it uses as much as digits as its factorization.

19837323105157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4762800, while the sum is 55.

The spelling of 19837323105157 in words is "nineteen trillion, eight hundred thirty-seven billion, three hundred twenty-three million, one hundred five thousand, one hundred fifty-seven".