865432212722 has 32 divisors (see below), whose sum is σ = 1649007828864. Its totient is φ = 330819465600.

The previous prime is 865432212721. The next prime is 865432212727. The reversal of 865432212722 is 227212234568.

It is not an unprimeable number, because it can be changed into a prime (865432212721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53007779 + ... + 53024102.

It is an arithmetic number, because the mean of its divisors is an integer number (51531494652).

Almost surely, 2^865432212722 is an apocalyptic number.

865432212722 is a deficient number, since it is larger than the sum of its proper divisors (783575616142).

865432212722 is a wasteful number, since it uses less digits than its factorization.

865432212722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106031954.

The product of its digits is 645120, while the sum is 44.

The spelling of 865432212722 in words is "eight hundred sixty-five billion, four hundred thirty-two million, two hundred twelve thousand, seven hundred twenty-two".