863021340961 has 16 divisors (see below), whose sum is σ = 984325233024. Its totient is φ = 749586311424.

The previous prime is 863021340947. The next prime is 863021340971. The reversal of 863021340961 is 169043120368.

It is a cyclic number.

It is not a de Polignac number, because 863021340961 - 2¹¹ = 863021338913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (863021340971) 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, 398266 + ... + 1372828.

It is an arithmetic number, because the mean of its divisors is an integer number (61520327064).

Almost surely, 2^863021340961 is an apocalyptic number.

It is an amenable number.

863021340961 is a deficient number, since it is larger than the sum of its proper divisors (121303892063).

863021340961 is a wasteful number, since it uses less digits than its factorization.

863021340961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978600.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 863021340961 in words is "eight hundred sixty-three billion, twenty-one million, three hundred forty thousand, nine hundred sixty-one".