441840367638157 has 4 divisors (see below), whose sum is σ = 441842930377596. Its totient is φ = 441837804898720.

The previous prime is 441840367638053. The next prime is 441840367638161. The reversal of 441840367638157 is 751836763048144.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 422470985701801 + 19369381936356 = 20554099^2 + 4401066^2 .

It is a cyclic number.

It is not a de Polignac number, because 441840367638157 - 2³⁹ = 441290611824269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 441840367638092 and 441840367638101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441840367630157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281111088 + ... + 1281455929.

It is an arithmetic number, because the mean of its divisors is an integer number (110460732594399).

Almost surely, 2^{441840367638157} is an apocalyptic number.

It is an amenable number.

441840367638157 is a deficient number, since it is larger than the sum of its proper divisors (2562739439).

441840367638157 is a wasteful number, since it uses less digits than its factorization.

441840367638157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562739438.

The product of its (nonzero) digits is 325140480, while the sum is 67.

The spelling of 441840367638157 in words is "four hundred forty-one trillion, eight hundred forty billion, three hundred sixty-seven million, six hundred thirty-eight thousand, one hundred fifty-seven".