85702535887 has 4 divisors (see below), whose sum is σ = 87319564920. Its totient is φ = 84085506856.

The previous prime is 85702535881. The next prime is 85702535903. The reversal of 85702535887 is 78853520758.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85702535887 - 2³ = 85702535879 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85702535881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808514437 + ... + 808514542.

It is an arithmetic number, because the mean of its divisors is an integer number (21829891230).

Almost surely, 2^85702535887 is an apocalyptic number.

85702535887 is a deficient number, since it is larger than the sum of its proper divisors (1617029033).

85702535887 is a wasteful number, since it uses less digits than its factorization.

85702535887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617029032.

The product of its (nonzero) digits is 18816000, while the sum is 58.

The spelling of 85702535887 in words is "eighty-five billion, seven hundred two million, five hundred thirty-five thousand, eight hundred eighty-seven".