42431535343613 has 4 divisors (see below), whose sum is σ = 45695499600828. Its totient is φ = 39167571086400.

The previous prime is 42431535343583. The next prime is 42431535343693. The reversal of 42431535343613 is 31634353513424.

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 21290869325209 + 21140666018404 = 4614203^2 + 4597898^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42431535343613 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 (42431535343693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1631982128588 + ... + 1631982128613.

It is an arithmetic number, because the mean of its divisors is an integer number (11423874900207).

Almost surely, 2^{42431535343613} is an apocalyptic number.

It is an amenable number.

42431535343613 is a deficient number, since it is larger than the sum of its proper divisors (3263964257215).

42431535343613 is a wasteful number, since it uses less digits than its factorization.

42431535343613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263964257214.

The product of its digits is 4665600, while the sum is 47.

The spelling of 42431535343613 in words is "forty-two trillion, four hundred thirty-one billion, five hundred thirty-five million, three hundred forty-three thousand, six hundred thirteen".