864403285727 has 4 divisors (see below), whose sum is σ = 866056065000. Its totient is φ = 862750506456.

The previous prime is 864403285703. The next prime is 864403285783. The reversal of 864403285727 is 727582304468.

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 864403285727 - 2²⁶ = 864336176863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864403285787) 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, 826388852 + ... + 826389897.

It is an arithmetic number, because the mean of its divisors is an integer number (216514016250).

Almost surely, 2^864403285727 is an apocalyptic number.

864403285727 is a deficient number, since it is larger than the sum of its proper divisors (1652779273).

864403285727 is a wasteful number, since it uses less digits than its factorization.

864403285727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652779272.

The product of its (nonzero) digits is 18063360, while the sum is 56.

The spelling of 864403285727 in words is "eight hundred sixty-four billion, four hundred three million, two hundred eighty-five thousand, seven hundred twenty-seven".