42815622085 has 32 divisors (see below), whose sum is σ = 54790255872. Its totient is φ = 32007521280.

The previous prime is 42815622071. The next prime is 42815622089. The reversal of 42815622085 is 58022651824.

It is not a de Polignac number, because 42815622085 - 2⁷ = 42815621957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42815622089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14218230 + ... + 14221240.

It is an arithmetic number, because the mean of its divisors is an integer number (1712195496).

Almost surely, 2^42815622085 is an apocalyptic number.

It is an amenable number.

42815622085 is a deficient number, since it is larger than the sum of its proper divisors (11974633787).

42815622085 is a wasteful number, since it uses less digits than its factorization.

42815622085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173.

The product of its (nonzero) digits is 307200, while the sum is 43.

It can be divided in two parts, 428156 and 22085, that added together give a square (450241 = 671²).

The spelling of 42815622085 in words is "forty-two billion, eight hundred fifteen million, six hundred twenty-two thousand, eighty-five".