2149538197699 has 2 divisors, whose sum is σ = 2149538197700. Its totient is φ = 2149538197698.

The previous prime is 2149538197637. The next prime is 2149538197711. The reversal of 2149538197699 is 9967918359412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2149538197699 - 2¹⁹ = 2149537673411 is a prime.

It is not a weakly prime, because it can be changed into another prime (2149538191699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074769098849 + 1074769098850.

It is an arithmetic number, because the mean of its divisors is an integer number (1074769098850).

Almost surely, 2^{2149538197699} is an apocalyptic number.

2149538197699 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149538197699 is an equidigital number, since it uses as much as digits as its factorization.

2149538197699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264539520, while the sum is 73.

The spelling of 2149538197699 in words is "two trillion, one hundred forty-nine billion, five hundred thirty-eight million, one hundred ninety-seven thousand, six hundred ninety-nine".