287272554860 has 96 divisors (see below), whose sum is σ = 642191239872. Its totient is φ = 107569602560.

The previous prime is 287272554851. The next prime is 287272554917. The reversal of 287272554860 is 68455272782.

It is a junction number, because it is equal to n+sod(n) for n = 287272554796 and 287272554805.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120650870 + ... + 120653250.

It is an arithmetic number, because the mean of its divisors is an integer number (6689492082).

Almost surely, 2^287272554860 is an apocalyptic number.

287272554860 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 287272554860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321095619936).

287272554860 is an abundant number, since it is smaller than the sum of its proper divisors (354918685012).

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

287272554860 is a wasteful number, since it uses less digits than its factorization.

287272554860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4163 (or 4161 counting only the distinct ones).

The product of its (nonzero) digits is 15052800, while the sum is 56.

The spelling of 287272554860 in words is "two hundred eighty-seven billion, two hundred seventy-two million, five hundred fifty-four thousand, eight hundred sixty".