287220874060459 has 4 divisors (see below), whose sum is σ = 287245662272104. Its totient is φ = 287196085848816.

The previous prime is 287220874060453. The next prime is 287220874060499. The reversal of 287220874060459 is 954060478022782.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 287220874060459 - 2¹⁹ = 287220873536171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 287220874060459.

It is not an unprimeable number, because it can be changed into a prime (287220874060453) by changing a digit.

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, 12394088442 + ... + 12394111615.

It is an arithmetic number, because the mean of its divisors is an integer number (71811415568026).

Almost surely, 2^{287220874060459} is an apocalyptic number.

287220874060459 is a deficient number, since it is larger than the sum of its proper divisors (24788211645).

287220874060459 is a wasteful number, since it uses less digits than its factorization.

287220874060459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24788211644.

The product of its (nonzero) digits is 108380160, while the sum is 64.

The spelling of 287220874060459 in words is "two hundred eighty-seven trillion, two hundred twenty billion, eight hundred seventy-four million, sixty thousand, four hundred fifty-nine".