86750359879681 has 8 divisors (see below), whose sum is σ = 89742447976680. Its totient is φ = 83758318207872.

The previous prime is 86750359879657. The next prime is 86750359879709. The reversal of 86750359879681 is 18697895305768.

It can be written as a sum of positive squares in 4 ways, for example, as 15333646272400 + 71416713607281 = 3915820^2 + 8450841^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 86750359879681 - 2¹¹ = 86750359877633 is a prime.

It is a super-2 number, since 2×86750359879681² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86750359879595 and 86750359879604.

It is not an unprimeable number, because it can be changed into a prime (86750359874681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7783290 + ... + 15299683.

It is an arithmetic number, because the mean of its divisors is an integer number (11217805997085).

Almost surely, 2^{86750359879681} is an apocalyptic number.

It is an amenable number.

86750359879681 is a deficient number, since it is larger than the sum of its proper divisors (2992088096999).

86750359879681 is a wasteful number, since it uses less digits than its factorization.

86750359879681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23212595.

The product of its (nonzero) digits is 5486745600, while the sum is 82.

The spelling of 86750359879681 in words is "eighty-six trillion, seven hundred fifty billion, three hundred fifty-nine million, eight hundred seventy-nine thousand, six hundred eighty-one".