86670631844 has 12 divisors (see below), whose sum is σ = 151676052444. Its totient is φ = 43334616864.

The previous prime is 86670631841. The next prime is 86670631847. The reversal of 86670631844 is 44813607668.

It is an interprime number because it is at equal distance from previous prime (86670631841) and next prime (86670631847).

It can be written as a sum of positive squares in 2 ways, for example, as 26111328100 + 60559303744 = 161590^2 + 246088^2 .

It is not an unprimeable number, because it can be changed into a prime (86670631841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187742 + ... + 456714.

It is an arithmetic number, because the mean of its divisors is an integer number (12639671037).

Almost surely, 2^86670631844 is an apocalyptic number.

It is an amenable number.

86670631844 is a deficient number, since it is larger than the sum of its proper divisors (65005420600).

86670631844 is a wasteful number, since it uses less digits than its factorization.

86670631844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349534 (or 349532 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 86670631844 in words is "eighty-six billion, six hundred seventy million, six hundred thirty-one thousand, eight hundred forty-four".