8521113469 has 16 divisors (see below), whose sum is σ = 9379800000. Its totient is φ = 7676677120.

The previous prime is 8521113467. The next prime is 8521113479. The reversal of 8521113469 is 9643111258.

It is a cyclic number.

It is not a de Polignac number, because 8521113469 - 2¹ = 8521113467 is a prime.

It is a super-2 number, since 2×8521113469² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8521113463) 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, 730122 + ... + 741700.

It is an arithmetic number, because the mean of its divisors is an integer number (586237500).

Almost surely, 2^8521113469 is an apocalyptic number.

It is an amenable number.

8521113469 is a deficient number, since it is larger than the sum of its proper divisors (858686531).

8521113469 is a wasteful number, since it uses less digits than its factorization.

8521113469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12188.

The product of its digits is 51840, while the sum is 40.

The square root of 8521113469 is about 92309.8774183998. The cubic root of 8521113469 is about 2042.5159165128.

The spelling of 8521113469 in words is "eight billion, five hundred twenty-one million, one hundred thirteen thousand, four hundred sixty-nine".