42505011443 has 4 divisors (see below), whose sum is σ = 43103673648. Its totient is φ = 41906349240.

The previous prime is 42505011427. The next prime is 42505011467. The reversal of 42505011443 is 34411050524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42505011443 - 2⁴ = 42505011427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42505011343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299330996 + ... + 299331137.

It is an arithmetic number, because the mean of its divisors is an integer number (10775918412).

Almost surely, 2^42505011443 is an apocalyptic number.

42505011443 is a deficient number, since it is larger than the sum of its proper divisors (598662205).

42505011443 is an equidigital number, since it uses as much as digits as its factorization.

42505011443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598662204.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 42505011443 its reverse (34411050524), we get a palindrome (76916061967).

The spelling of 42505011443 in words is "forty-two billion, five hundred five million, eleven thousand, four hundred forty-three".