855321369243 has 16 divisors (see below), whose sum is σ = 1244393544576. Its totient is φ = 518255864640.

The previous prime is 855321369197. The next prime is 855321369293. The reversal of 855321369243 is 342963123558.

It is not a de Polignac number, because 855321369243 - 2¹⁸ = 855321107099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (855321369293) 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, 2874121 + ... + 3157722.

It is an arithmetic number, because the mean of its divisors is an integer number (77774596536).

Almost surely, 2^855321369243 is an apocalyptic number.

855321369243 is a deficient number, since it is larger than the sum of its proper divisors (389072175333).

855321369243 is a wasteful number, since it uses less digits than its factorization.

855321369243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6036154.

The product of its digits is 4665600, while the sum is 51.

The spelling of 855321369243 in words is "eight hundred fifty-five billion, three hundred twenty-one million, three hundred sixty-nine thousand, two hundred forty-three".