2043291125669 has 2 divisors, whose sum is σ = 2043291125670. Its totient is φ = 2043291125668.

The previous prime is 2043291125647. The next prime is 2043291125671. The reversal of 2043291125669 is 9665211923402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1745543016100 + 297748109569 = 1321190^2 + 545663^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043291125669 - 2⁸ = 2043291125413 is a prime.

It is a super-2 number, since 2×2043291125669² (a number of 25 digits) contains 22 as substring.

Together with 2043291125671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2043291115669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021645562834 + 1021645562835.

It is an arithmetic number, because the mean of its divisors is an integer number (1021645562835).

Almost surely, 2^{2043291125669} is an apocalyptic number.

It is an amenable number.

2043291125669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043291125669 is an equidigital number, since it uses as much as digits as its factorization.

2043291125669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 2043291125669 in words is "two trillion, forty-three billion, two hundred ninety-one million, one hundred twenty-five thousand, six hundred sixty-nine".