86026784321 has 2 divisors, whose sum is σ = 86026784322. Its totient is φ = 86026784320.

The previous prime is 86026784303. The next prime is 86026784341. The reversal of 86026784321 is 12348762068.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68481132721 + 17545651600 = 261689^2 + 132460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86026784321 is a prime.

It is a super-2 number, since 2×86026784321² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86026784341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43013392160 + 43013392161.

It is an arithmetic number, because the mean of its divisors is an integer number (43013392161).

Almost surely, 2^86026784321 is an apocalyptic number.

It is an amenable number.

86026784321 is a deficient number, since it is larger than the sum of its proper divisors (1).

86026784321 is an equidigital number, since it uses as much as digits as its factorization.

86026784321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 86026784321 in words is "eighty-six billion, twenty-six million, seven hundred eighty-four thousand, three hundred twenty-one".