8238211005690 has 24 divisors (see below), whose sum is σ = 21419348615028. Its totient is φ = 2196856268160.

The previous prime is 8238211005679. The next prime is 8238211005707. The reversal of 8238211005690 is 965001128328.

8238211005690 is a `hidden beast` number, since 8 + 2 + 3 + 82 + 1 + 1 + 0 + 0 + 569 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8063492857641 + 174718148049 = 2839629^2 + 417993^2 .

It is a super-2 number, since 2×8238211005690² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45767838831 + ... + 45767839010.

Almost surely, 2^{8238211005690} is an apocalyptic number.

8238211005690 is an abundant number, since it is smaller than the sum of its proper divisors (13181137609338).

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

8238211005690 is a wasteful number, since it uses less digits than its factorization.

8238211005690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91535677854 (or 91535677851 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 8238211005690 in words is "eight trillion, two hundred thirty-eight billion, two hundred eleven million, five thousand, six hundred ninety".