287738260422912 has 864 divisors, whose sum is σ = 947319740989440. Its totient is φ = 86552359280640.

The previous prime is 287738260422881. The next prime is 287738260422947. The reversal of 287738260422912 is 219224062837782.

287738260422912 is a `hidden beast` number, since 2 + 8 + 7 + 7 + 3 + 8 + 2 + 604 + 2 + 2 + 9 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a super-2 number, since 2×287738260422912² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 287738260422912.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 37667002389 + ... + 37667010027.

Almost surely, 2^{287738260422912} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 287738260422912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473659870494720).

287738260422912 is an abundant number, since it is smaller than the sum of its proper divisors (659581480566528).

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

287738260422912 is an equidigital number, since it uses as much as digits as its factorization.

287738260422912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8721 (or 8695 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 63.

The spelling of 287738260422912 in words is "two hundred eighty-seven trillion, seven hundred thirty-eight billion, two hundred sixty million, four hundred twenty-two thousand, nine hundred twelve".