440877656473 has 2 divisors, whose sum is σ = 440877656474. Its totient is φ = 440877656472.

The previous prime is 440877656449. The next prime is 440877656501. The reversal of 440877656473 is 374656778044.

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., 421393125904 + 19484530569 = 649148^2 + 139587^2 .

It is a cyclic number.

It is not a de Polignac number, because 440877656473 - 2²¹ = 440875559321 is a prime.

It is not a weakly prime, because it can be changed into another prime (440877654473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220438828236 + 220438828237.

It is an arithmetic number, because the mean of its divisors is an integer number (220438828237).

Almost surely, 2^440877656473 is an apocalyptic number.

It is an amenable number.

440877656473 is a deficient number, since it is larger than the sum of its proper divisors (1).

440877656473 is an equidigital number, since it uses as much as digits as its factorization.

440877656473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94832640, while the sum is 61.

The spelling of 440877656473 in words is "four hundred forty billion, eight hundred seventy-seven million, six hundred fifty-six thousand, four hundred seventy-three".