12542057747 has 8 divisors (see below), whose sum is σ = 12780925200. Its totient is φ = 12303272800.

The previous prime is 12542057729. The next prime is 12542057761. The reversal of 12542057747 is 74775024521.

12542057747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12542057747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12542057698 and 12542057707.

It is not an unprimeable number, because it can be changed into a prime (12542057147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348497 + ... + 382797.

It is an arithmetic number, because the mean of its divisors is an integer number (1597615650).

Almost surely, 2^12542057747 is an apocalyptic number.

12542057747 is a deficient number, since it is larger than the sum of its proper divisors (238867453).

12542057747 is an equidigital number, since it uses as much as digits as its factorization.

12542057747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41253.

The product of its (nonzero) digits is 548800, while the sum is 44.

The spelling of 12542057747 in words is "twelve billion, five hundred forty-two million, fifty-seven thousand, seven hundred forty-seven".