867004647873984 has 140 divisors (see below), whose sum is σ = 2721254171820624. Its totient is φ = 272001458128896.

The previous prime is 867004647873941. The next prime is 867004647874003. The reversal of 867004647873984 is 489378746400768.

867004647873984 is a `hidden beast` number, since 8 + 6 + 7 + 0 + 0 + 464 + 7 + 8 + 73 + 9 + 84 = 666.

It is a super-2 number, since 2×867004647873984² (a number of 31 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 4918919724 + ... + 4919095979.

Almost surely, 2^{867004647873984} is an apocalyptic number.

It is an amenable number.

867004647873984 is an abundant number, since it is smaller than the sum of its proper divisors (1854249523946640).

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

867004647873984 is a wasteful number, since it uses less digits than its factorization.

867004647873984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9838015744 (or 9838015725 counting only the distinct ones).

The product of its (nonzero) digits is 10924720128, while the sum is 81.

The spelling of 867004647873984 in words is "eight hundred sixty-seven trillion, four billion, six hundred forty-seven million, eight hundred seventy-three thousand, nine hundred eighty-four".