6408136852 has 24 divisors (see below), whose sum is σ = 12466452992. Its totient is φ = 2862194400.

The previous prime is 6408136841. The next prime is 6408136901. The reversal of 6408136852 is 2586318046.

It is a junction number, because it is equal to n+sod(n) for n = 6408136799 and 6408136808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1986024 + ... + 1989247.

Almost surely, 2^6408136852 is an apocalyptic number.

6408136852 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6408136852 is a deficient number, since it is larger than the sum of its proper divisors (6058316140).

6408136852 is a wasteful number, since it uses less digits than its factorization.

6408136852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975319 (or 3975317 counting only the distinct ones).

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

The square root of 6408136852 is about 80050.8391711168. The cubic root of 6408136852 is about 1857.4220319211.

The spelling of 6408136852 in words is "six billion, four hundred eight million, one hundred thirty-six thousand, eight hundred fifty-two".