19750158133217 has 2 divisors, whose sum is σ = 19750158133218. Its totient is φ = 19750158133216.

The previous prime is 19750158133169. The next prime is 19750158133253. The reversal of 19750158133217 is 71233185105791.

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., 12365237747776 + 7384920385441 = 3516424^2 + 2717521^2 .

It is a cyclic number.

It is not a de Polignac number, because 19750158133217 - 2²⁰ = 19750157084641 is a prime.

It is a super-2 number, since 2×19750158133217² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19750158133417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9875079066608 + 9875079066609.

It is an arithmetic number, because the mean of its divisors is an integer number (9875079066609).

Almost surely, 2^{19750158133217} is an apocalyptic number.

It is an amenable number.

19750158133217 is a deficient number, since it is larger than the sum of its proper divisors (1).

19750158133217 is an equidigital number, since it uses as much as digits as its factorization.

19750158133217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1587600, while the sum is 53.

The spelling of 19750158133217 in words is "nineteen trillion, seven hundred fifty billion, one hundred fifty-eight million, one hundred thirty-three thousand, two hundred seventeen".