42165625242 has 32 divisors (see below), whose sum is σ = 94766894208. Its totient is φ = 12409949376.

The previous prime is 42165625213. The next prime is 42165625247. The reversal of 42165625242 is 24252656124.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 42165625242.

It is not an unprimeable number, because it can be changed into a prime (42165625247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11750053 + ... + 11753640.

It is an arithmetic number, because the mean of its divisors is an integer number (2961465444).

Almost surely, 2^42165625242 is an apocalyptic number.

42165625242 is an abundant number, since it is smaller than the sum of its proper divisors (52601268966).

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

42165625242 is a wasteful number, since it uses less digits than its factorization.

42165625242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23503734.

The product of its digits is 230400, while the sum is 39.

The spelling of 42165625242 in words is "forty-two billion, one hundred sixty-five million, six hundred twenty-five thousand, two hundred forty-two".