42174131663 has 4 divisors (see below), whose sum is σ = 42751859568. Its totient is φ = 41596403760.

The previous prime is 42174131639. The next prime is 42174131693. The reversal of 42174131663 is 36613147124.

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

It is a cyclic number.

It is not a de Polignac number, because 42174131663 - 2⁶ = 42174131599 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 (42174131693) 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, 288863843 + ... + 288863988.

It is an arithmetic number, because the mean of its divisors is an integer number (10687964892).

Almost surely, 2^42174131663 is an apocalyptic number.

42174131663 is a deficient number, since it is larger than the sum of its proper divisors (577727905).

42174131663 is an equidigital number, since it uses as much as digits as its factorization.

42174131663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577727904.

The product of its digits is 72576, while the sum is 38.

Adding to 42174131663 its reverse (36613147124), we get a palindrome (78787278787).

The spelling of 42174131663 in words is "forty-two billion, one hundred seventy-four million, one hundred thirty-one thousand, six hundred sixty-three".