2126589307993 has 2 divisors, whose sum is σ = 2126589307994. Its totient is φ = 2126589307992.

The previous prime is 2126589307949. The next prime is 2126589308021. The reversal of 2126589307993 is 3997039856212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1783805990464 + 342783317529 = 1335592^2 + 585477^2 .

It is a cyclic number.

It is not a de Polignac number, because 2126589307993 - 2³³ = 2117999373401 is a prime.

It is a super-2 number, since 2×2126589307993² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2126589307933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063294653996 + 1063294653997.

It is an arithmetic number, because the mean of its divisors is an integer number (1063294653997).

Almost surely, 2^{2126589307993} is an apocalyptic number.

It is an amenable number.

2126589307993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126589307993 is an equidigital number, since it uses as much as digits as its factorization.

2126589307993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44089920, while the sum is 64.

The spelling of 2126589307993 in words is "two trillion, one hundred twenty-six billion, five hundred eighty-nine million, three hundred seven thousand, nine hundred ninety-three".