86219727765 has 16 divisors (see below), whose sum is σ = 138777625728. Its totient is φ = 45708501056.

The previous prime is 86219727751. The next prime is 86219727779. The reversal of 86219727765 is 56772791268.

It is an interprime number because it is at equal distance from previous prime (86219727751) and next prime (86219727779).

It is a cyclic number.

It is not a de Polignac number, because 86219727765 - 2⁶ = 86219727701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86219727699 and 86219727708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17207022 + ... + 17212031.

It is an arithmetic number, because the mean of its divisors is an integer number (8673601608).

Almost surely, 2^86219727765 is an apocalyptic number.

It is an amenable number.

86219727765 is a deficient number, since it is larger than the sum of its proper divisors (52557897963).

86219727765 is a wasteful number, since it uses less digits than its factorization.

86219727765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34419228.

The product of its digits is 17781120, while the sum is 60.

The spelling of 86219727765 in words is "eighty-six billion, two hundred nineteen million, seven hundred twenty-seven thousand, seven hundred sixty-five".