287463452540 has 96 divisors (see below), whose sum is σ = 687521640960. Its totient is φ = 99938361600.

The previous prime is 287463452539. The next prime is 287463452557. The reversal of 287463452540 is 45254364782.

It is a congruent number.

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, 11225471 + ... + 11251049.

It is an arithmetic number, because the mean of its divisors is an integer number (7161683760).

Almost surely, 2^287463452540 is an apocalyptic number.

287463452540 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 287463452540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343760820480).

287463452540 is an abundant number, since it is smaller than the sum of its proper divisors (400058188420).

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

287463452540 is a wasteful number, since it uses less digits than its factorization.

287463452540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27843 (or 27841 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 50.

The spelling of 287463452540 in words is "two hundred eighty-seven billion, four hundred sixty-three million, four hundred fifty-two thousand, five hundred forty".