42434164631 has 4 divisors (see below), whose sum is σ = 42434958312. Its totient is φ = 42433370952.

The previous prime is 42434164601. The next prime is 42434164637. The reversal of 42434164631 is 13646143424.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42434164631 is a prime.

It is a super-2 number, since 2×42434164631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42434164637) 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, 310361 + ... + 425666.

It is an arithmetic number, because the mean of its divisors is an integer number (10608739578).

Almost surely, 2^42434164631 is an apocalyptic number.

42434164631 is a deficient number, since it is larger than the sum of its proper divisors (793681).

42434164631 is an equidigital number, since it uses as much as digits as its factorization.

42434164631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793680.

The product of its digits is 165888, while the sum is 38.

The spelling of 42434164631 in words is "forty-two billion, four hundred thirty-four million, one hundred sixty-four thousand, six hundred thirty-one".