8864492509 has 8 divisors (see below), whose sum is σ = 8915407352. Its totient is φ = 8813629440.

The previous prime is 8864492479. The next prime is 8864492513. The reversal of 8864492509 is 9052944688.

It can be written as a sum of positive squares in 4 ways, for example, as 1205617284 + 7658875225 = 34722^2 + 87515^2 .

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 8864492509 - 2¹⁹ = 8863968221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8864492509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8864498509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361189 + ... + 384949.

It is an arithmetic number, because the mean of its divisors is an integer number (1114425919).

Almost surely, 2^8864492509 is an apocalyptic number.

It is an amenable number.

8864492509 is a deficient number, since it is larger than the sum of its proper divisors (50914843).

8864492509 is a wasteful number, since it uses less digits than its factorization.

8864492509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25887.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The square root of 8864492509 is about 94151.4339189797. The cubic root of 8864492509 is about 2069.5914702514.

The spelling of 8864492509 in words is "eight billion, eight hundred sixty-four million, four hundred ninety-two thousand, five hundred nine".