284874617949 has 16 divisors (see below), whose sum is σ = 383409911808. Its totient is φ = 188128120752.

The previous prime is 284874617903. The next prime is 284874617957. The reversal of 284874617949 is 949716478482.

It is a de Polignac number, because none of the positive numbers 2^k-284874617949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284874617449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6780084 + ... + 6821970.

It is an arithmetic number, because the mean of its divisors is an integer number (23963119488).

Almost surely, 2^284874617949 is an apocalyptic number.

It is an amenable number.

284874617949 is a deficient number, since it is larger than the sum of its proper divisors (98535293859).

284874617949 is a wasteful number, since it uses less digits than its factorization.

284874617949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63184.

The product of its digits is 195084288, while the sum is 69.

The spelling of 284874617949 in words is "two hundred eighty-four billion, eight hundred seventy-four million, six hundred seventeen thousand, nine hundred forty-nine".