287887242426 has 32 divisors (see below), whose sum is σ = 659209415040. Its totient is φ = 82105818816.

The previous prime is 287887242389. The next prime is 287887242463. The reversal of 287887242426 is 624242788782.

It is an interprime number because it is at equal distance from previous prime (287887242389) and next prime (287887242463).

It is a self number, because there is not a number n which added to its sum of digits gives 287887242426.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6129621 + ... + 6176408.

It is an arithmetic number, because the mean of its divisors is an integer number (20600294220).

Almost surely, 2^287887242426 is an apocalyptic number.

287887242426 is an abundant number, since it is smaller than the sum of its proper divisors (371322172614).

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

287887242426 is a wasteful number, since it uses less digits than its factorization.

287887242426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12306598.

The product of its digits is 38535168, while the sum is 60.

The spelling of 287887242426 in words is "two hundred eighty-seven billion, eight hundred eighty-seven million, two hundred forty-two thousand, four hundred twenty-six".