42765224172 has 96 divisors (see below), whose sum is σ = 110799360000. Its totient is φ = 12728308800.

The previous prime is 42765224167. The next prime is 42765224213. The reversal of 42765224172 is 27142256724.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14258329 + ... + 14261327.

It is an arithmetic number, because the mean of its divisors is an integer number (1154160000).

Almost surely, 2^42765224172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42765224172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55399680000).

42765224172 is an abundant number, since it is smaller than the sum of its proper divisors (68034135828).

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

42765224172 is a wasteful number, since it uses less digits than its factorization.

42765224172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907 (or 4905 counting only the distinct ones).

The product of its digits is 376320, while the sum is 42.

The spelling of 42765224172 in words is "forty-two billion, seven hundred sixty-five million, two hundred twenty-four thousand, one hundred seventy-two".