284664907081 has 8 divisors (see below), whose sum is σ = 290629009664. Its totient is φ = 278742658320.

The previous prime is 284664907073. The next prime is 284664907103. The reversal of 284664907081 is 180709466482.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 284664907081 - 2³ = 284664907073 is a prime.

It is a super-2 number, since 2×284664907081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284664907781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10449711 + ... + 10476916.

It is an arithmetic number, because the mean of its divisors is an integer number (36328626208).

Almost surely, 2^284664907081 is an apocalyptic number.

It is an amenable number.

284664907081 is a deficient number, since it is larger than the sum of its proper divisors (5964102583).

284664907081 is a wasteful number, since it uses less digits than its factorization.

284664907081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20926911.

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 284664907081 in words is "two hundred eighty-four billion, six hundred sixty-four million, nine hundred seven thousand, eighty-one".