6386739836 has 12 divisors (see below), whose sum is σ = 11190122160. Its totient is φ = 3189562080.

The previous prime is 6386739811. The next prime is 6386739881. The reversal of 6386739836 is 6389376836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 948185 + ... + 954896.

It is an arithmetic number, because the mean of its divisors is an integer number (932510180).

Almost surely, 2^6386739836 is an apocalyptic number.

It is an amenable number.

6386739836 is a deficient number, since it is larger than the sum of its proper divisors (4803382324).

6386739836 is a wasteful number, since it uses less digits than its factorization.

6386739836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903924 (or 1903922 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 59.

The square root of 6386739836 is about 79917.0810027493. The cubic root of 6386739836 is about 1855.3523920822.

The spelling of 6386739836 in words is "six billion, three hundred eighty-six million, seven hundred thirty-nine thousand, eight hundred thirty-six".