6812751438 has 24 divisors (see below), whose sum is σ = 14766874200. Its totient is φ = 2270007504.

The previous prime is 6812751437. The next prime is 6812751443. The reversal of 6812751438 is 8341572186.

6812751438 is a `hidden beast` number, since 6 + 8 + 127 + 514 + 3 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6812751393 and 6812751402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6812751433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28833 + ... + 120236.

It is an arithmetic number, because the mean of its divisors is an integer number (615286425).

Almost surely, 2^6812751438 is an apocalyptic number.

6812751438 is an abundant number, since it is smaller than the sum of its proper divisors (7954122762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6812751438 is a wasteful number, since it uses less digits than its factorization.

6812751438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151616 (or 151613 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 6812751438 is about 82539.3932495266. The cubic root of 6812751438 is about 1895.7199537645.

The spelling of 6812751438 in words is "six billion, eight hundred twelve million, seven hundred fifty-one thousand, four hundred thirty-eight".