86681495907 has 24 divisors (see below), whose sum is σ = 128286744768. Its totient is φ = 56366640000.

The previous prime is 86681495899. The next prime is 86681495917. The reversal of 86681495907 is 70959418668.

86681495907 is a `hidden beast` number, since 8 + 66 + 81 + 495 + 9 + 0 + 7 = 666.

It is not a de Polignac number, because 86681495907 - 2³ = 86681495899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86681495917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2008518 + ... + 2051220.

It is an arithmetic number, because the mean of its divisors is an integer number (5345281032).

Almost surely, 2^86681495907 is an apocalyptic number.

86681495907 is a deficient number, since it is larger than the sum of its proper divisors (41605248861).

86681495907 is a wasteful number, since it uses less digits than its factorization.

86681495907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48251 (or 48248 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 86681495907 in words is "eighty-six billion, six hundred eighty-one million, four hundred ninety-five thousand, nine hundred seven".