440269406761 has 2 divisors, whose sum is σ = 440269406762. Its totient is φ = 440269406760.

The previous prime is 440269406743. The next prime is 440269406803. The reversal of 440269406761 is 167604962044.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440205710400 + 63696361 = 663480^2 + 7981^2 .

It is a cyclic number.

It is not a de Polignac number, because 440269406761 - 2²¹ = 440267309609 is a prime.

It is a super-2 number, since 2×440269406761² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (440269406561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220134703380 + 220134703381.

It is an arithmetic number, because the mean of its divisors is an integer number (220134703381).

Almost surely, 2^440269406761 is an apocalyptic number.

It is an amenable number.

440269406761 is a deficient number, since it is larger than the sum of its proper divisors (1).

440269406761 is an equidigital number, since it uses as much as digits as its factorization.

440269406761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 440269406761 in words is "four hundred forty billion, two hundred sixty-nine million, four hundred six thousand, seven hundred sixty-one".