438612727412 has 12 divisors (see below), whose sum is σ = 767766770400. Its totient is φ = 219250793016.

The previous prime is 438612727411. The next prime is 438612727453. The reversal of 438612727412 is 214727216834.

It is a super-2 number, since 2×438612727412² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438612727411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13874912 + ... + 13906487.

It is an arithmetic number, because the mean of its divisors is an integer number (63980564200).

Almost surely, 2^438612727412 is an apocalyptic number.

It is an amenable number.

438612727412 is a deficient number, since it is larger than the sum of its proper divisors (329154042988).

438612727412 is a wasteful number, since it uses less digits than its factorization.

438612727412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27785350 (or 27785348 counting only the distinct ones).

The product of its digits is 903168, while the sum is 47.

The spelling of 438612727412 in words is "four hundred thirty-eight billion, six hundred twelve million, seven hundred twenty-seven thousand, four hundred twelve".