864280440401 has 16 divisors (see below), whose sum is σ = 999632570496. Its totient is φ = 731925213696.

The previous prime is 864280440371. The next prime is 864280440431. The reversal of 864280440401 is 104044082468.

It is an interprime number because it is at equal distance from previous prime (864280440371) and next prime (864280440431).

It is a cyclic number.

It is not a de Polignac number, because 864280440401 - 2¹⁰ = 864280439377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (864280440431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685646 + ... + 1482791.

It is an arithmetic number, because the mean of its divisors is an integer number (62477035656).

Almost surely, 2^864280440401 is an apocalyptic number.

It is an amenable number.

864280440401 is a deficient number, since it is larger than the sum of its proper divisors (135352130095).

864280440401 is a wasteful number, since it uses less digits than its factorization.

864280440401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169128.

The product of its (nonzero) digits is 196608, while the sum is 41.

The spelling of 864280440401 in words is "eight hundred sixty-four billion, two hundred eighty million, four hundred forty thousand, four hundred one".