6774445693 has 2 divisors, whose sum is σ = 6774445694. Its totient is φ = 6774445692.

The previous prime is 6774445661. The next prime is 6774445709. The reversal of 6774445693 is 3965444776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4467852964 + 2306592729 = 66842^2 + 48027^2 .

It is a cyclic number.

It is not a de Polignac number, because 6774445693 - 2⁵ = 6774445661 is a prime.

It is a super-2 number, since 2×6774445693² = 91786228894812500498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6774445603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3387222846 + 3387222847.

It is an arithmetic number, because the mean of its divisors is an integer number (3387222847).

Almost surely, 2^6774445693 is an apocalyptic number.

It is an amenable number.

6774445693 is a deficient number, since it is larger than the sum of its proper divisors (1).

6774445693 is an equidigital number, since it uses as much as digits as its factorization.

6774445693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 55.

The square root of 6774445693 is about 82307.0209216686. The cubic root of 6774445693 is about 1892.1602812609.

The spelling of 6774445693 in words is "six billion, seven hundred seventy-four million, four hundred forty-five thousand, six hundred ninety-three".