12557187047937 has 8 divisors (see below), whose sum is σ = 19134761215936. Its totient is φ = 7175535455952.

The previous prime is 12557187047929. The next prime is 12557187047939. The reversal of 12557187047937 is 73974078175521.

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

It is not a de Polignac number, because 12557187047937 - 2³ = 12557187047929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12557187047939) 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, 298980643978 + ... + 298980644019.

It is an arithmetic number, because the mean of its divisors is an integer number (2391845151992).

Almost surely, 2^{12557187047937} is an apocalyptic number.

It is an amenable number.

12557187047937 is a deficient number, since it is larger than the sum of its proper divisors (6577574167999).

12557187047937 is an equidigital number, since it uses as much as digits as its factorization.

12557187047937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597961288007.

The product of its (nonzero) digits is 103723200, while the sum is 66.

The spelling of 12557187047937 in words is "twelve trillion, five hundred fifty-seven billion, one hundred eighty-seven million, forty-seven thousand, nine hundred thirty-seven".