866842662462 has 64 divisors (see below), whose sum is σ = 2017395154944. Its totient is φ = 243188051040.

The previous prime is 866842662457. The next prime is 866842662559. The reversal of 866842662462 is 264266248668.

It is a junction number, because it is equal to n+sod(n) for n = 866842662396 and 866842662405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 379903 + ... + 1370405.

It is an arithmetic number, because the mean of its divisors is an integer number (31521799296).

Almost surely, 2^866842662462 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 866842662462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1008697577472).

866842662462 is an abundant number, since it is smaller than the sum of its proper divisors (1150552492482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

866842662462 is a wasteful number, since it uses less digits than its factorization.

866842662462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990893.

The product of its digits is 63700992, while the sum is 60.

The spelling of 866842662462 in words is "eight hundred sixty-six billion, eight hundred forty-two million, six hundred sixty-two thousand, four hundred sixty-two".