8133204861 has 6 divisors (see below), whose sum is σ = 11747962590. Its totient is φ = 5422136568.

The previous prime is 8133204803. The next prime is 8133204887. The reversal of 8133204861 is 1684023318.

It can be written as a sum of positive squares in only one way, i.e., 4461572025 + 3671632836 = 66795^2 + 60594^2 .

It is not a de Polignac number, because 8133204861 - 2⁶ = 8133204797 is a prime.

It is a super-2 number, since 2×8133204861² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8133203861) 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, 451844706 + ... + 451844723.

It is an arithmetic number, because the mean of its divisors is an integer number (1957993765).

Almost surely, 2^8133204861 is an apocalyptic number.

It is an amenable number.

8133204861 is a deficient number, since it is larger than the sum of its proper divisors (3614757729).

8133204861 is a wasteful number, since it uses less digits than its factorization.

8133204861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903689435 (or 903689432 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 8133204861 is about 90184.2827825337. The cubic root of 8133204861 is about 2011.0393592455.

The spelling of 8133204861 in words is "eight billion, one hundred thirty-three million, two hundred four thousand, eight hundred sixty-one".