12481384057 has 4 divisors (see below), whose sum is σ = 12485143440. Its totient is φ = 12477624676.

The previous prime is 12481384049. The next prime is 12481384067. The reversal of 12481384057 is 75048318421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12481384057 - 2³ = 12481384049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12481384007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1874707 + ... + 1881352.

It is an arithmetic number, because the mean of its divisors is an integer number (3121285860).

Almost surely, 2^12481384057 is an apocalyptic number.

It is an amenable number.

12481384057 is a deficient number, since it is larger than the sum of its proper divisors (3759383).

12481384057 is an equidigital number, since it uses as much as digits as its factorization.

12481384057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3759382.

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 12481384057 in words is "twelve billion, four hundred eighty-one million, three hundred eighty-four thousand, fifty-seven".