287121864013 has 8 divisors (see below), whose sum is σ = 294198480576. Its totient is φ = 280048754400.

The previous prime is 287121863981. The next prime is 287121864047. The reversal of 287121864013 is 310468121782.

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

It is a cyclic number.

It is not a de Polignac number, because 287121864013 - 2⁵ = 287121863981 is a prime.

It is a super-3 number, since 3×287121864013³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287121864053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710593 + ... + 1038838.

It is an arithmetic number, because the mean of its divisors is an integer number (36774810072).

Almost surely, 2^287121864013 is an apocalyptic number.

It is an amenable number.

287121864013 is a deficient number, since it is larger than the sum of its proper divisors (7076616563).

287121864013 is a wasteful number, since it uses less digits than its factorization.

287121864013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753475.

The product of its (nonzero) digits is 129024, while the sum is 43.

Adding to 287121864013 its reverse (310468121782), we get a palindrome (597589985795).

The spelling of 287121864013 in words is "two hundred eighty-seven billion, one hundred twenty-one million, eight hundred sixty-four thousand, thirteen".