4086521836 has 6 divisors (see below), whose sum is σ = 7151413220. Its totient is φ = 2043260916.

The previous prime is 4086521833. The next prime is 4086521837. The reversal of 4086521836 is 6381256804.

It is a super-2 number, since 2×4086521836² = 33399321432209621792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4086521792 and 4086521801.

It is not an unprimeable number, because it can be changed into a prime (4086521833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510815226 + ... + 510815233.

Almost surely, 2^4086521836 is an apocalyptic number.

It is an amenable number.

4086521836 is a deficient number, since it is larger than the sum of its proper divisors (3064891384).

4086521836 is a wasteful number, since it uses less digits than its factorization.

4086521836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021630463 (or 1021630461 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 4086521836 is about 63925.9089571670. The cubic root of 4086521836 is about 1598.7649109046.

The spelling of 4086521836 in words is "four billion, eighty-six million, five hundred twenty-one thousand, eight hundred thirty-six".