12541515388 has 12 divisors (see below), whose sum is σ = 21981267000. Its totient is φ = 6261153392.

The previous prime is 12541515377. The next prime is 12541515431. The reversal of 12541515388 is 88351514521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2398138 + ... + 2403361.

It is an arithmetic number, because the mean of its divisors is an integer number (1831772250).

Almost surely, 2^12541515388 is an apocalyptic number.

It is an amenable number.

12541515388 is a deficient number, since it is larger than the sum of its proper divisors (9439751612).

12541515388 is a wasteful number, since it uses less digits than its factorization.

12541515388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4802156 (or 4802154 counting only the distinct ones).

The product of its digits is 192000, while the sum is 43.

The spelling of 12541515388 in words is "twelve billion, five hundred forty-one million, five hundred fifteen thousand, three hundred eighty-eight".