42161795574 has 36 divisors (see below), whose sum is σ = 89593749012. Its totient is φ = 13224547520.

The previous prime is 42161795561. The next prime is 42161795647. The reversal of 42161795574 is 47559716124.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8547889 + ... + 8552819.

Almost surely, 2^42161795574 is an apocalyptic number.

42161795574 is an abundant number, since it is smaller than the sum of its proper divisors (47431953438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42161795574 is an frugal number, since it uses more digits than its factorization.

42161795574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9901 (or 4953 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The spelling of 42161795574 in words is "forty-two billion, one hundred sixty-one million, seven hundred ninety-five thousand, five hundred seventy-four".