284615666949 has 32 divisors (see below), whose sum is σ = 384360920064. Its totient is φ = 187324067840.

The previous prime is 284615666939. The next prime is 284615666999. The reversal of 284615666949 is 949666516482.

It is a cyclic number.

It is not a de Polignac number, because 284615666949 - 2³² = 280320699653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 284615666949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284615666939) 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, 117462952 + ... + 117465374.

It is an arithmetic number, because the mean of its divisors is an integer number (12011278752).

Almost surely, 2^284615666949 is an apocalyptic number.

It is an amenable number.

284615666949 is a deficient number, since it is larger than the sum of its proper divisors (99745253115).

284615666949 is a wasteful number, since it uses less digits than its factorization.

284615666949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3977.

The product of its digits is 134369280, while the sum is 66.

The spelling of 284615666949 in words is "two hundred eighty-four billion, six hundred fifteen million, six hundred sixty-six thousand, nine hundred forty-nine".