864424062109 has 4 divisors (see below), whose sum is σ = 864602999680. Its totient is φ = 864245124540.

The previous prime is 864424062083. The next prime is 864424062121. The reversal of 864424062109 is 901260424468.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 864424062109 - 2²³ = 864415673501 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 (864424062179) 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 3 ways as a sum of consecutive naturals, for example, 89461539 + ... + 89471200.

It is an arithmetic number, because the mean of its divisors is an integer number (216150749920).

Almost surely, 2^864424062109 is an apocalyptic number.

It is an amenable number.

864424062109 is a deficient number, since it is larger than the sum of its proper divisors (178937571).

864424062109 is a wasteful number, since it uses less digits than its factorization.

864424062109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178937570.

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 864424062109 in words is "eight hundred sixty-four billion, four hundred twenty-four million, sixty-two thousand, one hundred nine".