287117362880 has 448 divisors, whose sum is σ = 769520269440. Its totient is φ = 101534662656.

The previous prime is 287117362859. The next prime is 287117362901. The reversal of 287117362880 is 88263711782.

It is an interprime number because it is at equal distance from previous prime (287117362859) and next prime (287117362901).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1232263244 + ... + 1232263476.

Almost surely, 2^287117362880 is an apocalyptic number.

287117362880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 287117362880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384760134720).

287117362880 is an abundant number, since it is smaller than the sum of its proper divisors (482402906560).

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

287117362880 is a wasteful number, since it uses less digits than its factorization.

287117362880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 53.

The spelling of 287117362880 in words is "two hundred eighty-seven billion, one hundred seventeen million, three hundred sixty-two thousand, eight hundred eighty".