869152195561131 has 36 divisors (see below), whose sum is σ = 1263018875489280. Its totient is φ = 575958158154720.

The previous prime is 869152195561087. The next prime is 869152195561151. The reversal of 869152195561131 is 131165591251968.

It is a happy number.

869152195561131 is a `hidden beast` number, since 8 + 6 + 9 + 1 + 5 + 2 + 1 + 9 + 5 + 5 + 611 + 3 + 1 = 666.

It is not a de Polignac number, because 869152195561131 - 2²⁵ = 869152162006699 is a prime.

It is a super-2 number, since 2×869152195561131² (a number of 31 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (869152195561151) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 362699350 + ... + 365087828.

It is an arithmetic number, because the mean of its divisors is an integer number (35083857652480).

Almost surely, 2^{869152195561131} is an apocalyptic number.

869152195561131 is a deficient number, since it is larger than the sum of its proper divisors (393866679928149).

869152195561131 is a wasteful number, since it uses less digits than its factorization.

869152195561131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389904 (or 2389702 counting only the distinct ones).

The product of its digits is 17496000, while the sum is 63.

The spelling of 869152195561131 in words is "eight hundred sixty-nine trillion, one hundred fifty-two billion, one hundred ninety-five million, five hundred sixty-one thousand, one hundred thirty-one".