864991629732 has 24 divisors (see below), whose sum is σ = 2018661172416. Its totient is φ = 288280919008.

The previous prime is 864991629713. The next prime is 864991629889. The reversal of 864991629732 is 237926199468.

It is a super-3 number, since 3×864991629732³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6130368 + ... + 6269879.

It is an arithmetic number, because the mean of its divisors is an integer number (84110882184).

Almost surely, 2^864991629732 is an apocalyptic number.

It is an amenable number.

864991629732 is an abundant number, since it is smaller than the sum of its proper divisors (1153669542684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864991629732 is a wasteful number, since it uses less digits than its factorization.

864991629732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12406067 (or 12406065 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 66.

The spelling of 864991629732 in words is "eight hundred sixty-four billion, nine hundred ninety-one million, six hundred twenty-nine thousand, seven hundred thirty-two".