864497927446 has 8 divisors (see below), whose sum is σ = 1296752392584. Its totient is φ = 432247129920.

The previous prime is 864497927443. The next prime is 864497927519. The reversal of 864497927446 is 644729794468.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864497927441) 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, 222420 + ... + 1333591.

It is an arithmetic number, because the mean of its divisors is an integer number (162094049073).

Almost surely, 2^864497927446 is an apocalyptic number.

864497927446 is a deficient number, since it is larger than the sum of its proper divisors (432254465138).

864497927446 is a wasteful number, since it uses less digits than its factorization.

864497927446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833806.

The product of its digits is 585252864, while the sum is 70.

The spelling of 864497927446 in words is "eight hundred sixty-four billion, four hundred ninety-seven million, nine hundred twenty-seven thousand, four hundred forty-six".