86526918681 has 8 divisors (see below), whose sum is σ = 131850542784. Its totient is φ = 49443953520.

The previous prime is 86526918671. The next prime is 86526918683. The reversal of 86526918681 is 18681962568.

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

It is not a de Polignac number, because 86526918681 - 2⁶ = 86526918617 is a prime.

It is a super-2 number, since 2×86526918681² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86526918683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2060164710 + ... + 2060164751.

It is an arithmetic number, because the mean of its divisors is an integer number (16481317848).

Almost surely, 2^86526918681 is an apocalyptic number.

It is an amenable number.

86526918681 is a deficient number, since it is larger than the sum of its proper divisors (45323624103).

86526918681 is a wasteful number, since it uses less digits than its factorization.

86526918681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4120329471.

The product of its digits is 9953280, while the sum is 60.

The spelling of 86526918681 in words is "eighty-six billion, five hundred twenty-six million, nine hundred eighteen thousand, six hundred eighty-one".