287970089980 has 12 divisors (see below), whose sum is σ = 604737189000. Its totient is φ = 115188035984.

The previous prime is 287970089963. The next prime is 287970090011. The reversal of 287970089980 is 89980079782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7199252230 + ... + 7199252269.

It is an arithmetic number, because the mean of its divisors is an integer number (50394765750).

Almost surely, 2^287970089980 is an apocalyptic number.

287970089980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

287970089980 is an abundant number, since it is smaller than the sum of its proper divisors (316767099020).

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

287970089980 is a wasteful number, since it uses less digits than its factorization.

287970089980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14398504508 (or 14398504506 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 67.

The spelling of 287970089980 in words is "two hundred eighty-seven billion, nine hundred seventy million, eighty-nine thousand, nine hundred eighty".