6438088912 has 40 divisors (see below), whose sum is σ = 12561461640. Its totient is φ = 3196477440.

The previous prime is 6438088889. The next prime is 6438088913. The reversal of 6438088912 is 2198808346.

It can be written as a sum of positive squares in 4 ways, for example, as 1997732416 + 4440356496 = 44696^2 + 66636^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6438088913) 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, 2689188 + ... + 2691580.

It is an arithmetic number, because the mean of its divisors is an integer number (314036541).

Almost surely, 2^6438088912 is an apocalyptic number.

It is an amenable number.

6438088912 is a deficient number, since it is larger than the sum of its proper divisors (6123372728).

6438088912 is a wasteful number, since it uses less digits than its factorization.

6438088912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3511 (or 3505 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 6438088912 is about 80237.7025593330. The cubic root of 6438088912 is about 1860.3114397367.

The spelling of 6438088912 in words is "six billion, four hundred thirty-eight million, eighty-eight thousand, nine hundred twelve".