42645485803 has 2 divisors, whose sum is σ = 42645485804. Its totient is φ = 42645485802.

The previous prime is 42645485741. The next prime is 42645485843. The reversal of 42645485803 is 30858454624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42645485803 - 2⁹ = 42645485291 is a prime.

It is not a weakly prime, because it can be changed into another prime (42645485843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21322742901 + 21322742902.

It is an arithmetic number, because the mean of its divisors is an integer number (21322742902).

Almost surely, 2^42645485803 is an apocalyptic number.

42645485803 is a deficient number, since it is larger than the sum of its proper divisors (1).

42645485803 is an equidigital number, since it uses as much as digits as its factorization.

42645485803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3686400, while the sum is 49.

The spelling of 42645485803 in words is "forty-two billion, six hundred forty-five million, four hundred eighty-five thousand, eight hundred three".