287227471247 has 4 divisors (see below), whose sum is σ = 290188579296. Its totient is φ = 284266363200.

The previous prime is 287227471187. The next prime is 287227471291. The reversal of 287227471247 is 742174722782.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 287227471247 - 2¹⁰ = 287227470223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287227471147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1480553879 + ... + 1480554072.

It is an arithmetic number, because the mean of its divisors is an integer number (72547144824).

Almost surely, 2^287227471247 is an apocalyptic number.

287227471247 is a deficient number, since it is larger than the sum of its proper divisors (2961108049).

287227471247 is an equidigital number, since it uses as much as digits as its factorization.

287227471247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961108048.

The product of its digits is 4917248, while the sum is 53.

The spelling of 287227471247 in words is "two hundred eighty-seven billion, two hundred twenty-seven million, four hundred seventy-one thousand, two hundred forty-seven".