85236488889 has 8 divisors (see below), whose sum is σ = 113716834080. Its totient is φ = 56790234816.

The previous prime is 85236488849. The next prime is 85236488971. The reversal of 85236488889 is 98888463258.

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

It is not a de Polignac number, because 85236488889 - 2¹⁶ = 85236423353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85236488849) 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, 8516944 + ... + 8526945.

It is an arithmetic number, because the mean of its divisors is an integer number (14214604260).

Almost surely, 2^85236488889 is an apocalyptic number.

It is an amenable number.

85236488889 is a deficient number, since it is larger than the sum of its proper divisors (28480345191).

85236488889 is a wasteful number, since it uses less digits than its factorization.

85236488889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17045559.

The product of its digits is 212336640, while the sum is 69.

The spelling of 85236488889 in words is "eighty-five billion, two hundred thirty-six million, four hundred eighty-eight thousand, eight hundred eighty-nine".