42855947125 has 8 divisors (see below), whose sum is σ = 53484222168. Its totient is φ = 34284757600.

The previous prime is 42855947111. The next prime is 42855947159. The reversal of 42855947125 is 52174955824.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6222369924 + 36633577201 = 78882^2 + 191399^2 .

It is not a de Polignac number, because 42855947125 - 2¹⁵ = 42855914357 is a prime.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171423664 + ... + 171423913.

It is an arithmetic number, because the mean of its divisors is an integer number (6685527771).

Almost surely, 2^42855947125 is an apocalyptic number.

It is an amenable number.

42855947125 is a deficient number, since it is larger than the sum of its proper divisors (10628275043).

42855947125 is an equidigital number, since it uses as much as digits as its factorization.

42855947125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342847592 (or 342847582 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 52.

The spelling of 42855947125 in words is "forty-two billion, eight hundred fifty-five million, nine hundred forty-seven thousand, one hundred twenty-five".