440346177697 has 2 divisors, whose sum is σ = 440346177698. Its totient is φ = 440346177696.

The previous prime is 440346177641. The next prime is 440346177743. The reversal of 440346177697 is 796771643044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337509873936 + 102836303761 = 580956^2 + 320681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440346177697 is a prime.

It is not a weakly prime, because it can be changed into another prime (440346117697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220173088848 + 220173088849.

It is an arithmetic number, because the mean of its divisors is an integer number (220173088849).

Almost surely, 2^440346177697 is an apocalyptic number.

It is an amenable number.

440346177697 is a deficient number, since it is larger than the sum of its proper divisors (1).

440346177697 is an equidigital number, since it uses as much as digits as its factorization.

440346177697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21337344, while the sum is 58.

The spelling of 440346177697 in words is "four hundred forty billion, three hundred forty-six million, one hundred seventy-seven thousand, six hundred ninety-seven".