86868867541 has 2 divisors, whose sum is σ = 86868867542. Its totient is φ = 86868867540.

The previous prime is 86868867457. The next prime is 86868867563. The reversal of 86868867541 is 14576886868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57350191441 + 29518676100 = 239479^2 + 171810^2 .

It is a cyclic number.

It is not a de Polignac number, because 86868867541 - 2¹¹ = 86868865493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86868867571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43434433770 + 43434433771.

It is an arithmetic number, because the mean of its divisors is an integer number (43434433771).

Almost surely, 2^86868867541 is an apocalyptic number.

It is an amenable number.

86868867541 is a deficient number, since it is larger than the sum of its proper divisors (1).

86868867541 is an equidigital number, since it uses as much as digits as its factorization.

86868867541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123863040, while the sum is 67.

The spelling of 86868867541 in words is "eighty-six billion, eight hundred sixty-eight million, eight hundred sixty-seven thousand, five hundred forty-one".