6756021889 has 2 divisors, whose sum is σ = 6756021890. Its totient is φ = 6756021888.

The previous prime is 6756021829. The next prime is 6756021929. The reversal of 6756021889 is 9881206576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6755524864 + 497025 = 82192^2 + 705^2 .

It is a cyclic number.

It is not a de Polignac number, because 6756021889 - 2⁷ = 6756021761 is a prime.

It is not a weakly prime, because it can be changed into another prime (6756021809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3378010944 + 3378010945.

It is an arithmetic number, because the mean of its divisors is an integer number (3378010945).

Almost surely, 2^6756021889 is an apocalyptic number.

It is an amenable number.

6756021889 is a deficient number, since it is larger than the sum of its proper divisors (1).

6756021889 is an equidigital number, since it uses as much as digits as its factorization.

6756021889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The square root of 6756021889 is about 82195.0235050760. The cubic root of 6756021889 is about 1890.4434155532.

The spelling of 6756021889 in words is "six billion, seven hundred fifty-six million, twenty-one thousand, eight hundred eighty-nine".