42052345345 has 4 divisors (see below), whose sum is σ = 50462814420. Its totient is φ = 33641876272.

The previous prime is 42052345331. The next prime is 42052345381. The reversal of 42052345345 is 54354325024.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28082050929 + 13970294416 = 167577^2 + 118196^2 .

It is a cyclic number.

It is not a de Polignac number, because 42052345345 - 2⁷ = 42052345217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4205234530 + ... + 4205234539.

It is an arithmetic number, because the mean of its divisors is an integer number (12615703605).

Almost surely, 2^42052345345 is an apocalyptic number.

It is an amenable number.

42052345345 is a deficient number, since it is larger than the sum of its proper divisors (8410469075).

42052345345 is an equidigital number, since it uses as much as digits as its factorization.

42052345345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8410469074.

The product of its (nonzero) digits is 288000, while the sum is 37.

The spelling of 42052345345 in words is "forty-two billion, fifty-two million, three hundred forty-five thousand, three hundred forty-five".