864949244063 has 4 divisors (see below), whose sum is σ = 871759868160. Its totient is φ = 858138619968.

The previous prime is 864949244059. The next prime is 864949244069. The reversal of 864949244063 is 360442949468.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 864949244063 - 2² = 864949244059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 864949243993 and 864949244011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864949244069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3405311858 + ... + 3405312111.

It is an arithmetic number, because the mean of its divisors is an integer number (217939967040).

Almost surely, 2^864949244063 is an apocalyptic number.

864949244063 is a deficient number, since it is larger than the sum of its proper divisors (6810624097).

864949244063 is a wasteful number, since it uses less digits than its factorization.

864949244063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6810624096.

The product of its (nonzero) digits is 35831808, while the sum is 59.

The spelling of 864949244063 in words is "eight hundred sixty-four billion, nine hundred forty-nine million, two hundred forty-four thousand, sixty-three".