85439024889 has 8 divisors (see below), whose sum is σ = 114030279552. Its totient is φ = 56903560080.

The previous prime is 85439024857. The next prime is 85439024893. The reversal of 85439024889 is 98842093458.

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

It is not a de Polignac number, because 85439024889 - 2⁵ = 85439024857 is a prime.

It is a super-2 number, since 2×85439024889² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85439024819) 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, 13943889 + ... + 13950014.

It is an arithmetic number, because the mean of its divisors is an integer number (14253784944).

Almost surely, 2^85439024889 is an apocalyptic number.

It is an amenable number.

85439024889 is a deficient number, since it is larger than the sum of its proper divisors (28591254663).

85439024889 is a wasteful number, since it uses less digits than its factorization.

85439024889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27894927.

The product of its (nonzero) digits is 19906560, while the sum is 60.

The spelling of 85439024889 in words is "eighty-five billion, four hundred thirty-nine million, twenty-four thousand, eight hundred eighty-nine".