42725815285 has 8 divisors (see below), whose sum is σ = 51460171776. Its totient is φ = 34054523280.

The previous prime is 42725815271. The next prime is 42725815291. The reversal of 42725815285 is 58251852724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42725815285 - 2¹⁷ = 42725684213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15764629 + ... + 15767338.

It is an arithmetic number, because the mean of its divisors is an integer number (6432521472).

Almost surely, 2^42725815285 is an apocalyptic number.

It is an amenable number.

42725815285 is a deficient number, since it is larger than the sum of its proper divisors (8734356491).

42725815285 is a wasteful number, since it uses less digits than its factorization.

42725815285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31532243.

The product of its digits is 1792000, while the sum is 49.

The spelling of 42725815285 in words is "forty-two billion, seven hundred twenty-five million, eight hundred fifteen thousand, two hundred eighty-five".