12501251387 has 8 divisors (see below), whose sum is σ = 13223481504. Its totient is φ = 11793912768.

The previous prime is 12501251333. The next prime is 12501251429. The reversal of 12501251387 is 78315210521.

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

It is not a de Polignac number, because 12501251387 - 2⁸ = 12501251131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12501251317) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3721148 + ... + 3724505.

It is an arithmetic number, because the mean of its divisors is an integer number (1652935188).

Almost surely, 2^12501251387 is an apocalyptic number.

12501251387 is a deficient number, since it is larger than the sum of its proper divisors (722230117).

12501251387 is an equidigital number, since it uses as much as digits as its factorization.

12501251387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7445749.

The product of its (nonzero) digits is 16800, while the sum is 35.

The spelling of 12501251387 in words is "twelve billion, five hundred one million, two hundred fifty-one thousand, three hundred eighty-seven".