12511853536 has 192 divisors, whose sum is σ = 32006016000. Its totient is φ = 4679110656.

The previous prime is 12511853483. The next prime is 12511853567. The reversal of 12511853536 is 63535811521.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5959815 + ... + 5961913.

It is an arithmetic number, because the mean of its divisors is an integer number (166698000).

Almost surely, 2^12511853536 is an apocalyptic number.

12511853536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12511853536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16003008000).

12511853536 is an abundant number, since it is smaller than the sum of its proper divisors (19494162464).

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

12511853536 is a wasteful number, since it uses less digits than its factorization.

12511853536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241 (or 2233 counting only the distinct ones).

The product of its digits is 108000, while the sum is 40.

The spelling of 12511853536 in words is "twelve billion, five hundred eleven million, eight hundred fifty-three thousand, five hundred thirty-six".