42786403441 has 2 divisors, whose sum is σ = 42786403442. Its totient is φ = 42786403440.

The previous prime is 42786403421. The next prime is 42786403447. The reversal of 42786403441 is 14430468724.

42786403441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32463030625 + 10323372816 = 180175^2 + 101604^2 .

It is a cyclic number.

It is not a de Polignac number, because 42786403441 - 2⁹ = 42786402929 is a prime.

It is not a weakly prime, because it can be changed into another prime (42786403447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21393201720 + 21393201721.

It is an arithmetic number, because the mean of its divisors is an integer number (21393201721).

Almost surely, 2^42786403441 is an apocalyptic number.

It is an amenable number.

42786403441 is a deficient number, since it is larger than the sum of its proper divisors (1).

42786403441 is an equidigital number, since it uses as much as digits as its factorization.

42786403441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 43.

The spelling of 42786403441 in words is "forty-two billion, seven hundred eighty-six million, four hundred three thousand, four hundred forty-one".