440142606240973 has 2 divisors, whose sum is σ = 440142606240974. Its totient is φ = 440142606240972.

The previous prime is 440142606240889. The next prime is 440142606241067. The reversal of 440142606240973 is 379042606241044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 425134830964804 + 15007775276169 = 20618798^2 + 3873987^2 .

It is a cyclic number.

It is not a de Polignac number, because 440142606240973 - 2²¹ = 440142604143821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 440142606240973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440142606270973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220071303120486 + 220071303120487.

It is an arithmetic number, because the mean of its divisors is an integer number (220071303120487).

Almost surely, 2^{440142606240973} is an apocalyptic number.

It is an amenable number.

440142606240973 is a deficient number, since it is larger than the sum of its proper divisors (1).

440142606240973 is an equidigital number, since it uses as much as digits as its factorization.

440142606240973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6967296, while the sum is 52.

The spelling of 440142606240973 in words is "four hundred forty trillion, one hundred forty-two billion, six hundred six million, two hundred forty thousand, nine hundred seventy-three".