284481857247 has 32 divisors (see below), whose sum is σ = 434198400000. Its totient is φ = 162297934848.

The previous prime is 284481857243. The next prime is 284481857287. The reversal of 284481857247 is 742758184482.

It is not a de Polignac number, because 284481857247 - 2² = 284481857243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284481857243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56905254 + ... + 56910252.

It is an arithmetic number, because the mean of its divisors is an integer number (13568700000).

Almost surely, 2^284481857247 is an apocalyptic number.

284481857247 is a deficient number, since it is larger than the sum of its proper divisors (149716542753).

284481857247 is a wasteful number, since it uses less digits than its factorization.

284481857247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8855.

The product of its digits is 32112640, while the sum is 60.

The spelling of 284481857247 in words is "two hundred eighty-four billion, four hundred eighty-one million, eight hundred fifty-seven thousand, two hundred forty-seven".