13888762512500 has 72 divisors (see below), whose sum is σ = 30459054495744. Its totient is φ = 5540997860000.

The previous prime is 13888762512409. The next prime is 13888762512643. The reversal of 13888762512500 is 521526788831.

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 23 ways as a sum of consecutive naturals, for example, 3336977 + ... + 6238023.

It is an arithmetic number, because the mean of its divisors is an integer number (423042423552).

Almost surely, 2^{13888762512500} is an apocalyptic number.

13888762512500 is a gapful number since it is divisible by the number (10) 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 13888762512500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15229527247872).

13888762512500 is an abundant number, since it is smaller than the sum of its proper divisors (16570291983244).

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

13888762512500 is an equidigital number, since it uses as much as digits as its factorization.

13888762512500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901459 (or 2901437 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 13888762512500 in words is "thirteen trillion, eight hundred eighty-eight billion, seven hundred sixty-two million, five hundred twelve thousand, five hundred".