8120886069 has 16 divisors (see below), whose sum is σ = 11332790784. Its totient is φ = 5162876400.

The previous prime is 8120886047. The next prime is 8120886071. The reversal of 8120886069 is 9606880218.

It is not a de Polignac number, because 8120886069 - 2²¹ = 8118788917 is a prime.

It is a super-2 number, since 2×8120886069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8120886089) 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, 154947 + ... + 200624.

It is an arithmetic number, because the mean of its divisors is an integer number (708299424).

Almost surely, 2^8120886069 is an apocalyptic number.

It is an amenable number.

8120886069 is a deficient number, since it is larger than the sum of its proper divisors (3211904715).

8120886069 is a wasteful number, since it uses less digits than its factorization.

8120886069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355928.

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 8120886069 is about 90115.9590139283. The cubic root of 8120886069 is about 2010.0235196872.

The spelling of 8120886069 in words is "eight billion, one hundred twenty million, eight hundred eighty-six thousand, sixty-nine".