8141847869 has 4 divisors (see below), whose sum is σ = 8183177244. Its totient is φ = 8100518496.

The previous prime is 8141847793. The next prime is 8141847877. The reversal of 8141847869 is 9687481418.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5254075225 + 2887772644 = 72485^2 + 53738^2 .

It is a cyclic number.

It is not a de Polignac number, because 8141847869 - 2¹⁶ = 8141782333 is a prime.

It is a super-2 number, since 2×8141847869² (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 (8141847269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20664392 + ... + 20664785.

It is an arithmetic number, because the mean of its divisors is an integer number (2045794311).

Almost surely, 2^8141847869 is an apocalyptic number.

It is an amenable number.

8141847869 is a deficient number, since it is larger than the sum of its proper divisors (41329375).

8141847869 is a wasteful number, since it uses less digits than its factorization.

8141847869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41329374.

The product of its digits is 3096576, while the sum is 56.

The square root of 8141847869 is about 90232.1886523872. The cubic root of 8141847869 is about 2011.7514719663.

The spelling of 8141847869 in words is "eight billion, one hundred forty-one million, eight hundred forty-seven thousand, eight hundred sixty-nine".