86864446868 has 6 divisors (see below), whose sum is σ = 152012782026. Its totient is φ = 43432223432.

The previous prime is 86864446859. The next prime is 86864446901.

86864446868 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 62826425104 + 24038021764 = 250652^2 + 155042^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86864446798 and 86864446807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10858055855 + ... + 10858055862.

It is an arithmetic number, because the mean of its divisors is an integer number (25335463671).

Almost surely, 2^86864446868 is an apocalyptic number.

It is an amenable number.

86864446868 is a deficient number, since it is larger than the sum of its proper divisors (65148335158).

86864446868 is a wasteful number, since it uses less digits than its factorization.

86864446868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21716111721 (or 21716111719 counting only the distinct ones).

The product of its digits is 339738624, while the sum is 68.

The spelling of 86864446868 in words is "eighty-six billion, eight hundred sixty-four million, four hundred forty-six thousand, eight hundred sixty-eight".