287856422045 has 16 divisors (see below), whose sum is σ = 351741528000. Its totient is φ = 226114017024.

The previous prime is 287856422017. The next prime is 287856422083. The reversal of 287856422045 is 540224658782.

It is a cyclic number.

It is not a de Polignac number, because 287856422045 - 2¹⁶ = 287856356509 is a prime.

It is a super-2 number, since 2×287856422045² (a number of 24 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 2320295 + ... + 2441204.

It is an arithmetic number, because the mean of its divisors is an integer number (21983845500).

Almost surely, 2^287856422045 is an apocalyptic number.

It is an amenable number.

287856422045 is a deficient number, since it is larger than the sum of its proper divisors (63885105955).

287856422045 is a wasteful number, since it uses less digits than its factorization.

287856422045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4761724.

The product of its (nonzero) digits is 8601600, while the sum is 53.

The spelling of 287856422045 in words is "two hundred eighty-seven billion, eight hundred fifty-six million, four hundred twenty-two thousand, forty-five".