440064425622361 has 2 divisors, whose sum is σ = 440064425622362. Its totient is φ = 440064425622360.

The previous prime is 440064425622317. The next prime is 440064425622377. The reversal of 440064425622361 is 163226524460044.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 371487808412361 + 68576617210000 = 19274019^2 + 8281100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440064425622361 is a prime.

It is not a weakly prime, because it can be changed into another prime (440064425622461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220032212811180 + 220032212811181.

It is an arithmetic number, because the mean of its divisors is an integer number (220032212811181).

Almost surely, 2^{440064425622361} is an apocalyptic number.

It is an amenable number.

440064425622361 is a deficient number, since it is larger than the sum of its proper divisors (1).

440064425622361 is an equidigital number, since it uses as much as digits as its factorization.

440064425622361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6635520, while the sum is 49.

The spelling of 440064425622361 in words is "four hundred forty trillion, sixty-four billion, four hundred twenty-five million, six hundred twenty-two thousand, three hundred sixty-one".