287880563484 has 48 divisors (see below), whose sum is σ = 762236966400. Its totient is φ = 93918480048.

The previous prime is 287880563479. The next prime is 287880563491. The reversal of 287880563484 is 484365088782.

287880563484 is a `hidden beast` number, since 2 + 8 + 78 + 80 + 5 + 6 + 3 + 484 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28351954 + ... + 28362105.

It is an arithmetic number, because the mean of its divisors is an integer number (15879936800).

Almost surely, 2^287880563484 is an apocalyptic number.

It is an amenable number.

287880563484 is an abundant number, since it is smaller than the sum of its proper divisors (474356402916).

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

287880563484 is a wasteful number, since it uses less digits than its factorization.

287880563484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56714119 (or 56714111 counting only the distinct ones).

The product of its (nonzero) digits is 82575360, while the sum is 63.

The spelling of 287880563484 in words is "two hundred eighty-seven billion, eight hundred eighty million, five hundred sixty-three thousand, four hundred eighty-four".