12538377712 has 40 divisors (see below), whose sum is σ = 27774190592. Its totient is φ = 5371531200.

The previous prime is 12538377629. The next prime is 12538377713. The reversal of 12538377712 is 21777383521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12538377713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292537 + ... + 332647.

Almost surely, 2^12538377712 is an apocalyptic number.

It is an amenable number.

12538377712 is an abundant number, since it is smaller than the sum of its proper divisors (15235812880).

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

12538377712 is a wasteful number, since it uses less digits than its factorization.

12538377712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42917 (or 42911 counting only the distinct ones).

The product of its digits is 493920, while the sum is 46.

The spelling of 12538377712 in words is "twelve billion, five hundred thirty-eight million, three hundred seventy-seven thousand, seven hundred twelve".