42142625293 has 4 divisors (see below), whose sum is σ = 42153109948. Its totient is φ = 42132140640.

The previous prime is 42142625281. The next prime is 42142625299. The reversal of 42142625293 is 39252624124.

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 11358870084 + 30783755209 = 106578^2 + 175453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42142625293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42142625299) 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, 5236296 + ... + 5244337.

It is an arithmetic number, because the mean of its divisors is an integer number (10538277487).

Almost surely, 2^42142625293 is an apocalyptic number.

It is an amenable number.

42142625293 is a deficient number, since it is larger than the sum of its proper divisors (10484655).

42142625293 is a wasteful number, since it uses less digits than its factorization.

42142625293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10484654.

The product of its digits is 207360, while the sum is 40.

The spelling of 42142625293 in words is "forty-two billion, one hundred forty-two million, six hundred twenty-five thousand, two hundred ninety-three".