864861761146 has 8 divisors (see below), whose sum is σ = 1297319323860. Its totient is φ = 432421986528.

The previous prime is 864861761117. The next prime is 864861761167. The reversal of 864861761146 is 641167168468.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 835350300625 + 29511460521 = 913975^2 + 171789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4324801 + ... + 4520356.

Almost surely, 2^864861761146 is an apocalyptic number.

864861761146 is a deficient number, since it is larger than the sum of its proper divisors (432457562714).

864861761146 is a wasteful number, since it uses less digits than its factorization.

864861761146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8894048.

The product of its digits is 9289728, while the sum is 58.

The spelling of 864861761146 in words is "eight hundred sixty-four billion, eight hundred sixty-one million, seven hundred sixty-one thousand, one hundred forty-six".