86785481637 has 12 divisors (see below), whose sum is σ = 126258656160. Its totient is φ = 57440749608.

The previous prime is 86785481633. The next prime is 86785481663. The reversal of 86785481637 is 73618458768.

86785481637 is a `hidden beast` number, since 8 + 6 + 78 + 548 + 16 + 3 + 7 = 666.

It is not a de Polignac number, because 86785481637 - 2² = 86785481633 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86785481633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34685193 + ... + 34687694.

It is an arithmetic number, because the mean of its divisors is an integer number (10521554680).

Almost surely, 2^86785481637 is an apocalyptic number.

It is an amenable number.

86785481637 is a deficient number, since it is larger than the sum of its proper divisors (39473174523).

86785481637 is a wasteful number, since it uses less digits than its factorization.

86785481637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69373032 (or 69373029 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The spelling of 86785481637 in words is "eighty-six billion, seven hundred eighty-five million, four hundred eighty-one thousand, six hundred thirty-seven".