8206549537149 has 6 divisors (see below), whose sum is σ = 11853904887006. Its totient is φ = 5471033024760.

The previous prime is 8206549537127. The next prime is 8206549537159. The reversal of 8206549537149 is 9417359456028.

8206549537149 is a `hidden beast` number, since 8 + 2 + 0 + 6 + 54 + 9 + 537 + 1 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7204312287225 + 1002237249924 = 2684085^2 + 1001118^2 .

It is not a de Polignac number, because 8206549537149 - 2²⁰ = 8206548488573 is a prime.

It is a super-2 number, since 2×8206549537149² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8206549537159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 455919418722 + ... + 455919418739.

It is an arithmetic number, because the mean of its divisors is an integer number (1975650814501).

It is a 1-persistent number, because it is pandigital, but 2⋅8206549537149 = 16413099074298 is not.

Almost surely, 2^{8206549537149} is an apocalyptic number.

It is an amenable number.

8206549537149 is a deficient number, since it is larger than the sum of its proper divisors (3647355349857).

8206549537149 is a wasteful number, since it uses less digits than its factorization.

8206549537149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911838837467 (or 911838837464 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 63.

The spelling of 8206549537149 in words is "eight trillion, two hundred six billion, five hundred forty-nine million, five hundred thirty-seven thousand, one hundred forty-nine".