104443785643 has 2 divisors, whose sum is σ = 104443785644. Its totient is φ = 104443785642.

The previous prime is 104443785637. The next prime is 104443785713. The reversal of 104443785643 is 346587344401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104443785643 - 2²⁹ = 103906914731 is a prime.

It is not a weakly prime, because it can be changed into another prime (104443782643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52221892821 + 52221892822.

It is an arithmetic number, because the mean of its divisors is an integer number (52221892822).

Almost surely, 2^104443785643 is an apocalyptic number.

104443785643 is a deficient number, since it is larger than the sum of its proper divisors (1).

104443785643 is an equidigital number, since it uses as much as digits as its factorization.

104443785643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 49.

The spelling of 104443785643 in words is "one hundred four billion, four hundred forty-three million, seven hundred eighty-five thousand, six hundred forty-three".