86924212819 has 2 divisors, whose sum is σ = 86924212820. Its totient is φ = 86924212818.

The previous prime is 86924212801. The next prime is 86924212831. The reversal of 86924212819 is 91821242968.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86924212819 - 2¹⁹ = 86923688531 is a prime.

It is a super-2 number, since 2×86924212819² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86924210819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43462106409 + 43462106410.

It is an arithmetic number, because the mean of its divisors is an integer number (43462106410).

Almost surely, 2^86924212819 is an apocalyptic number.

86924212819 is a deficient number, since it is larger than the sum of its proper divisors (1).

86924212819 is an equidigital number, since it uses as much as digits as its factorization.

86924212819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 52.

The spelling of 86924212819 in words is "eighty-six billion, nine hundred twenty-four million, two hundred twelve thousand, eight hundred nineteen".