85724600039 has 8 divisors (see below), whose sum is σ = 95502207360. Its totient is φ = 76401765216.

The previous prime is 85724599979. The next prime is 85724600041. The reversal of 85724600039 is 93000642758.

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 85724600039 - 2⁸ = 85724599783 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 (85724600069) by changing a digit.

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, 113692727 + ... + 113693480.

It is an arithmetic number, because the mean of its divisors is an integer number (11937775920).

Almost surely, 2^85724600039 is an apocalyptic number.

85724600039 is a deficient number, since it is larger than the sum of its proper divisors (9777607321).

85724600039 is a wasteful number, since it uses less digits than its factorization.

85724600039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227386249.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 85724600039 in words is "eighty-five billion, seven hundred twenty-four million, six hundred thousand, thirty-nine".