42265299641 has 2 divisors, whose sum is σ = 42265299642. Its totient is φ = 42265299640.

The previous prime is 42265299619. The next prime is 42265299673. The reversal of 42265299641 is 14699256224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24521994025 + 17743305616 = 156595^2 + 133204^2 .

It is a cyclic number.

It is not a de Polignac number, because 42265299641 - 2²⁶ = 42198190777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42265299641.

It is not a weakly prime, because it can be changed into another prime (42265299841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21132649820 + 21132649821.

It is an arithmetic number, because the mean of its divisors is an integer number (21132649821).

Almost surely, 2^42265299641 is an apocalyptic number.

It is an amenable number.

42265299641 is a deficient number, since it is larger than the sum of its proper divisors (1).

42265299641 is an equidigital number, since it uses as much as digits as its factorization.

42265299641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 50.

The spelling of 42265299641 in words is "forty-two billion, two hundred sixty-five million, two hundred ninety-nine thousand, six hundred forty-one".