287880242980 has 192 divisors, whose sum is σ = 706738556160. Its totient is φ = 97343078400.

The previous prime is 287880242921. The next prime is 287880242987. The reversal of 287880242980 is 89242088782.

It is not an unprimeable number, because it can be changed into a prime (287880242987) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 110339916 + ... + 110342524.

It is an arithmetic number, because the mean of its divisors is an integer number (3680929980).

Almost surely, 2^287880242980 is an apocalyptic number.

287880242980 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 287880242980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353369278080).

287880242980 is an abundant number, since it is smaller than the sum of its proper divisors (418858313180).

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

287880242980 is a wasteful number, since it uses less digits than its factorization.

287880242980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2990 (or 2988 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 58.

The spelling of 287880242980 in words is "two hundred eighty-seven billion, eight hundred eighty million, two hundred forty-two thousand, nine hundred eighty".