12547987502 has 8 divisors (see below), whose sum is σ = 19640328336. Its totient is φ = 6001211392.

The previous prime is 12547987499. The next prime is 12547987513. The reversal of 12547987502 is 20578974521.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 136391123 + ... + 136391214.

It is an arithmetic number, because the mean of its divisors is an integer number (2455041042).

Almost surely, 2^12547987502 is an apocalyptic number.

12547987502 is a deficient number, since it is larger than the sum of its proper divisors (7092340834).

12547987502 is a wasteful number, since it uses less digits than its factorization.

12547987502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272782362.

The product of its (nonzero) digits is 1411200, while the sum is 50.

The spelling of 12547987502 in words is "twelve billion, five hundred forty-seven million, nine hundred eighty-seven thousand, five hundred two".