12514641520 has 60 divisors (see below), whose sum is σ = 29358707976. Its totient is φ = 4961152000.

The previous prime is 12514641497. The next prime is 12514641523. The reversal of 12514641520 is 2514641521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12514641523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1015395 + ... + 1027645.

Almost surely, 2^12514641520 is an apocalyptic number.

12514641520 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 12514641520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14679353988).

12514641520 is an abundant number, since it is smaller than the sum of its proper divisors (16844066456).

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

12514641520 is a wasteful number, since it uses less digits than its factorization.

12514641520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12490 (or 12371 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

Subtracting from 12514641520 its reverse (2514641521), we obtain a palindrome (9999999999).

The spelling of 12514641520 in words is "twelve billion, five hundred fourteen million, six hundred forty-one thousand, five hundred twenty".