8442765521211 has 48 divisors (see below), whose sum is σ = 13530550176000. Its totient is φ = 4581714372480.

The previous prime is 8442765521209. The next prime is 8442765521251. The reversal of 8442765521211 is 1121255672448.

It is not a de Polignac number, because 8442765521211 - 2¹ = 8442765521209 is a prime.

It is a super-3 number, since 3×8442765521211³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (8442765521251) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 403240 + ... + 4128938.

It is an arithmetic number, because the mean of its divisors is an integer number (281886462000).

Almost surely, 2^{8442765521211} is an apocalyptic number.

8442765521211 is a deficient number, since it is larger than the sum of its proper divisors (5087784654789).

8442765521211 is a wasteful number, since it uses less digits than its factorization.

8442765521211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725860 (or 3725799 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The spelling of 8442765521211 in words is "eight trillion, four hundred forty-two billion, seven hundred sixty-five million, five hundred twenty-one thousand, two hundred eleven".