42605287639 has 8 divisors (see below), whose sum is σ = 42797614320. Its totient is φ = 42413016000.

The previous prime is 42605287601. The next prime is 42605287667. The reversal of 42605287639 is 93678250624.

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

It is a cyclic number.

It is not a de Polignac number, because 42605287639 - 2¹⁷ = 42605156567 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 (42605387639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3025164 + ... + 3039214.

It is an arithmetic number, because the mean of its divisors is an integer number (5349701790).

Almost surely, 2^42605287639 is an apocalyptic number.

42605287639 is a deficient number, since it is larger than the sum of its proper divisors (192326681).

42605287639 is a wasteful number, since it uses less digits than its factorization.

42605287639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27521.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 42605287639 in words is "forty-two billion, six hundred five million, two hundred eighty-seven thousand, six hundred thirty-nine".