12387007509 has 8 divisors (see below), whose sum is σ = 16621208160. Its totient is φ = 8205405936.

The previous prime is 12387007487. The next prime is 12387007511. The reversal of 12387007509 is 90570078321.

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

It is not a de Polignac number, because 12387007509 - 2⁸ = 12387007253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12387007609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13149219 + ... + 13150160.

It is an arithmetic number, because the mean of its divisors is an integer number (2077651020).

Almost surely, 2^12387007509 is an apocalyptic number.

It is an amenable number.

12387007509 is a deficient number, since it is larger than the sum of its proper divisors (4234200651).

12387007509 is a wasteful number, since it uses less digits than its factorization.

12387007509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26299539.

The product of its (nonzero) digits is 105840, while the sum is 42.

The spelling of 12387007509 in words is "twelve billion, three hundred eighty-seven million, seven thousand, five hundred nine".