42722867825 has 24 divisors (see below), whose sum is σ = 57881134656. Its totient is φ = 31023464000.

The previous prime is 42722867813. The next prime is 42722867833. The reversal of 42722867825 is 52876822724.

It is a happy number.

It is not a de Polignac number, because 42722867825 - 2⁴ = 42722867809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60620 + ... + 298530.

It is an arithmetic number, because the mean of its divisors is an integer number (2411713944).

Almost surely, 2^42722867825 is an apocalyptic number.

It is an amenable number.

42722867825 is a deficient number, since it is larger than the sum of its proper divisors (15158266831).

42722867825 is a wasteful number, since it uses less digits than its factorization.

42722867825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238585 (or 238580 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 53.

The spelling of 42722867825 in words is "forty-two billion, seven hundred twenty-two million, eight hundred sixty-seven thousand, eight hundred twenty-five".