287488783420 has 48 divisors (see below), whose sum is σ = 612736252128. Its totient is φ = 113291239680.

The previous prime is 287488783409. The next prime is 287488783433. The reversal of 287488783420 is 24387884782.

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, 16234 + ... + 758446.

It is an arithmetic number, because the mean of its divisors is an integer number (12765338586).

Almost surely, 2^287488783420 is an apocalyptic number.

287488783420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

287488783420 is an abundant number, since it is smaller than the sum of its proper divisors (325247468708).

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

287488783420 is a wasteful number, since it uses less digits than its factorization.

287488783420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742510 (or 742508 counting only the distinct ones).

The product of its (nonzero) digits is 38535168, while the sum is 61.

The spelling of 287488783420 in words is "two hundred eighty-seven billion, four hundred eighty-eight million, seven hundred eighty-three thousand, four hundred twenty".