85987609758 has 12 divisors (see below), whose sum is σ = 186306487848. Its totient is φ = 28662536580.

The previous prime is 85987609751. The next prime is 85987609783. The reversal of 85987609758 is 85790678958.

85987609758 is a `hidden beast` number, since 8 + 5 + 9 + 8 + 7 + 609 + 7 + 5 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85987609751) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2388544698 + ... + 2388544733.

It is an arithmetic number, because the mean of its divisors is an integer number (15525540654).

Almost surely, 2^85987609758 is an apocalyptic number.

85987609758 is an abundant number, since it is smaller than the sum of its proper divisors (100318878090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85987609758 is a wasteful number, since it uses less digits than its factorization.

85987609758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4777089439 (or 4777089436 counting only the distinct ones).

The product of its (nonzero) digits is 304819200, while the sum is 72.

The spelling of 85987609758 in words is "eighty-five billion, nine hundred eighty-seven million, six hundred nine thousand, seven hundred fifty-eight".