2043367776689 has 2 divisors, whose sum is σ = 2043367776690. Its totient is φ = 2043367776688.

The previous prime is 2043367776677. The next prime is 2043367776691. The reversal of 2043367776689 is 9866777633402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1337473746064 + 705894030625 = 1156492^2 + 840175^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043367776689 - 2⁸ = 2043367776433 is a prime.

Together with 2043367776691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2043367706689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021683888344 + 1021683888345.

It is an arithmetic number, because the mean of its divisors is an integer number (1021683888345).

Almost surely, 2^{2043367776689} is an apocalyptic number.

It is an amenable number.

2043367776689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043367776689 is an equidigital number, since it uses as much as digits as its factorization.

2043367776689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384072192, while the sum is 68.

The spelling of 2043367776689 in words is "two trillion, forty-three billion, three hundred sixty-seven million, seven hundred seventy-six thousand, six hundred eighty-nine".