86755084421 has 2 divisors, whose sum is σ = 86755084422. Its totient is φ = 86755084420.

The previous prime is 86755084399. The next prime is 86755084453. The reversal of 86755084421 is 12448055768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83110547521 + 3644536900 = 288289^2 + 60370^2 .

It is a cyclic number.

It is not a de Polignac number, because 86755084421 - 2²⁶ = 86687975557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86755084421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86755084621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43377542210 + 43377542211.

It is an arithmetic number, because the mean of its divisors is an integer number (43377542211).

Almost surely, 2^86755084421 is an apocalyptic number.

It is an amenable number.

86755084421 is a deficient number, since it is larger than the sum of its proper divisors (1).

86755084421 is an equidigital number, since it uses as much as digits as its factorization.

86755084421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 86755084421 in words is "eighty-six billion, seven hundred fifty-five million, eighty-four thousand, four hundred twenty-one".