6867436889 has 2 divisors, whose sum is σ = 6867436890. Its totient is φ = 6867436888.

The previous prime is 6867436883. The next prime is 6867436903. The reversal of 6867436889 is 9886347686.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6857164864 + 10272025 = 82808^2 + 3205^2 .

It is a cyclic number.

It is not a de Polignac number, because 6867436889 - 2⁸ = 6867436633 is a prime.

It is not a weakly prime, because it can be changed into another prime (6867436883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3433718444 + 3433718445.

It is an arithmetic number, because the mean of its divisors is an integer number (3433718445).

Almost surely, 2^6867436889 is an apocalyptic number.

It is an amenable number.

6867436889 is a deficient number, since it is larger than the sum of its proper divisors (1).

6867436889 is an equidigital number, since it uses as much as digits as its factorization.

6867436889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 83607552, while the sum is 65.

The square root of 6867436889 is about 82869.9999336310. Note that the first 4 decimals coincide. The cubic root of 6867436889 is about 1900.7787102592.

The spelling of 6867436889 in words is "six billion, eight hundred sixty-seven million, four hundred thirty-six thousand, eight hundred eighty-nine".