43774113697 has 2 divisors, whose sum is σ = 43774113698. Its totient is φ = 43774113696.

The previous prime is 43774113679. The next prime is 43774113793. The reversal of 43774113697 is 79631147734.

43774113697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (43774113679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43520635456 + 253478241 = 208616^2 + 15921^2 .

It is a cyclic number.

It is not a de Polignac number, because 43774113697 - 2¹¹ = 43774111649 is a prime.

It is not a weakly prime, because it can be changed into another prime (43774113667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21887056848 + 21887056849.

It is an arithmetic number, because the mean of its divisors is an integer number (21887056849).

Almost surely, 2^43774113697 is an apocalyptic number.

It is an amenable number.

43774113697 is a deficient number, since it is larger than the sum of its proper divisors (1).

43774113697 is an equidigital number, since it uses as much as digits as its factorization.

43774113697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2667168, while the sum is 52.

The spelling of 43774113697 in words is "forty-three billion, seven hundred seventy-four million, one hundred thirteen thousand, six hundred ninety-seven".