2159011571993 has 2 divisors, whose sum is σ = 2159011571994. Its totient is φ = 2159011571992.

The previous prime is 2159011571987. The next prime is 2159011572059. The reversal of 2159011571993 is 3991751109512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1155943221904 + 1003068350089 = 1075148^2 + 1001533^2 .

It is a cyclic number.

It is not a de Polignac number, because 2159011571993 - 2²⁴ = 2158994794777 is a prime.

It is a super-2 number, since 2×2159011571993² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2159011571903) 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, 1079505785996 + 1079505785997.

It is an arithmetic number, because the mean of its divisors is an integer number (1079505785997).

Almost surely, 2^{2159011571993} is an apocalyptic number.

It is an amenable number.

2159011571993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2159011571993 is an equidigital number, since it uses as much as digits as its factorization.

2159011571993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 765450, while the sum is 53.

The spelling of 2159011571993 in words is "two trillion, one hundred fifty-nine billion, eleven million, five hundred seventy-one thousand, nine hundred ninety-three".