42650640442441 has 2 divisors, whose sum is σ = 42650640442442. Its totient is φ = 42650640442440.

The previous prime is 42650640442429. The next prime is 42650640442493. The reversal of 42650640442441 is 14424404605624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27238263702841 + 15412376739600 = 5219029^2 + 3925860^2 .

It is a cyclic number.

It is not a de Polignac number, because 42650640442441 - 2²⁵ = 42650606888009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42650640442391 and 42650640442400.

It is not a weakly prime, because it can be changed into another prime (42650640542441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21325320221220 + 21325320221221.

It is an arithmetic number, because the mean of its divisors is an integer number (21325320221221).

Almost surely, 2^{42650640442441} is an apocalyptic number.

It is an amenable number.

42650640442441 is a deficient number, since it is larger than the sum of its proper divisors (1).

42650640442441 is an equidigital number, since it uses as much as digits as its factorization.

42650640442441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2949120, while the sum is 46.

The spelling of 42650640442441 in words is "forty-two trillion, six hundred fifty billion, six hundred forty million, four hundred forty-two thousand, four hundred forty-one".