12512869387 has 16 divisors (see below), whose sum is σ = 13365734400. Its totient is φ = 11679655680.

The previous prime is 12512869373. The next prime is 12512869393. The reversal of 12512869387 is 78396821521.

It is a happy number.

It is not a de Polignac number, because 12512869387 - 2¹⁵ = 12512836619 is a prime.

It is a super-2 number, since 2×12512869387² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12512864387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3946939 + ... + 3950107.

It is an arithmetic number, because the mean of its divisors is an integer number (835358400).

Almost surely, 2^12512869387 is an apocalyptic number.

12512869387 is a deficient number, since it is larger than the sum of its proper divisors (852865013).

12512869387 is a wasteful number, since it uses less digits than its factorization.

12512869387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6186.

The product of its digits is 1451520, while the sum is 52.

The spelling of 12512869387 in words is "twelve billion, five hundred twelve million, eight hundred sixty-nine thousand, three hundred eighty-seven".