287471730028 has 12 divisors (see below), whose sum is σ = 574943460112. Its totient is φ = 123202170000.

The previous prime is 287471730001. The next prime is 287471730037. The reversal of 287471730028 is 820037174782.

287471730028 is an admirable number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

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, 5133423723 + ... + 5133423778.

Almost surely, 2^287471730028 is an apocalyptic number.

287471730028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

287471730028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

287471730028 is a wasteful number, since it uses less digits than its factorization.

287471730028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10266847512 (or 10266847510 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 49.

The spelling of 287471730028 in words is "two hundred eighty-seven billion, four hundred seventy-one million, seven hundred thirty thousand, twenty-eight".