86424551999 has 2 divisors, whose sum is σ = 86424552000. Its totient is φ = 86424551998.

The previous prime is 86424551977. The next prime is 86424552001. The reversal of 86424551999 is 99915542468.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86424551999 - 2¹² = 86424547903 is a prime.

Together with 86424552001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86424551099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43212275999 + 43212276000.

It is an arithmetic number, because the mean of its divisors is an integer number (43212276000).

Almost surely, 2^86424551999 is an apocalyptic number.

86424551999 is a deficient number, since it is larger than the sum of its proper divisors (1).

86424551999 is an equidigital number, since it uses as much as digits as its factorization.

86424551999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27993600, while the sum is 62.

The spelling of 86424551999 in words is "eighty-six billion, four hundred twenty-four million, five hundred fifty-one thousand, nine hundred ninety-nine".