42325513729 has 4 divisors (see below), whose sum is σ = 42359402500. Its totient is φ = 42291624960.

The previous prime is 42325513697. The next prime is 42325513757. The reversal of 42325513729 is 92731552324.

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 24536089600 + 17789424129 = 156640^2 + 133377^2 .

It is a cyclic number.

It is not a de Polignac number, because 42325513729 - 2⁵ = 42325513697 is a prime.

It is a super-2 number, since 2×42325513729² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42325513129) 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, 16942512 + ... + 16945009.

It is an arithmetic number, because the mean of its divisors is an integer number (10589850625).

Almost surely, 2^42325513729 is an apocalyptic number.

It is an amenable number.

42325513729 is a deficient number, since it is larger than the sum of its proper divisors (33888771).

42325513729 is a wasteful number, since it uses less digits than its factorization.

42325513729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33888770.

The product of its digits is 453600, while the sum is 43.

The spelling of 42325513729 in words is "forty-two billion, three hundred twenty-five million, five hundred thirteen thousand, seven hundred twenty-nine".