6438318092 has 24 divisors (see below), whose sum is σ = 11378631600. Its totient is φ = 3187429056.

The previous prime is 6438318091. The next prime is 6438318097. The reversal of 6438318092 is 2908138346.

It is not an unprimeable number, because it can be changed into a prime (6438318091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157034 + ... + 193742.

It is an arithmetic number, because the mean of its divisors is an integer number (474109650).

Almost surely, 2^6438318092 is an apocalyptic number.

It is an amenable number.

6438318092 is a deficient number, since it is larger than the sum of its proper divisors (4940313508).

6438318092 is a wasteful number, since it uses less digits than its factorization.

6438318092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37145 (or 37143 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 6438318092 is about 80239.1306782420. The cubic root of 6438318092 is about 1860.3335136328. Note that the first 3 decimals are identical.

The spelling of 6438318092 in words is "six billion, four hundred thirty-eight million, three hundred eighteen thousand, ninety-two".