864015998822 has 8 divisors (see below), whose sum is σ = 1317270293472. Its totient is φ = 424925901000.

The previous prime is 864015998819. The next prime is 864015998831. The reversal of 864015998822 is 228899510468.

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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3541049054 + ... + 3541049297.

It is an arithmetic number, because the mean of its divisors is an integer number (164658786684).

Almost surely, 2^864015998822 is an apocalyptic number.

864015998822 is a deficient number, since it is larger than the sum of its proper divisors (453254294650).

864015998822 is a wasteful number, since it uses less digits than its factorization.

864015998822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7082098414.

The product of its (nonzero) digits is 19906560, while the sum is 62.

The spelling of 864015998822 in words is "eight hundred sixty-four billion, fifteen million, nine hundred ninety-eight thousand, eight hundred twenty-two".