12936537768 has 192 divisors, whose sum is σ = 41037073920. Its totient is φ = 3301545600.

The previous prime is 12936537767. The next prime is 12936537799. The reversal of 12936537768 is 86773563921.

It is not an unprimeable number, because it can be changed into a prime (12936537767) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6431883 + ... + 6433893.

It is an arithmetic number, because the mean of its divisors is an integer number (213734760).

Almost surely, 2^12936537768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12936537768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20518536960).

12936537768 is an abundant number, since it is smaller than the sum of its proper divisors (28100536152).

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

12936537768 is a wasteful number, since it uses less digits than its factorization.

12936537768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156 (or 2093 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 57.

The spelling of 12936537768 in words is "twelve billion, nine hundred thirty-six million, five hundred thirty-seven thousand, seven hundred sixty-eight".