12525039843 has 4 divisors (see below), whose sum is σ = 16700053128. Its totient is φ = 8350026560.

The previous prime is 12525039811. The next prime is 12525039869. The reversal of 12525039843 is 34893052521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12525039843 - 2⁵ = 12525039811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12525039795 and 12525039804.

It is not an unprimeable number, because it can be changed into a prime (12526039843) 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, 2087506638 + ... + 2087506643.

It is an arithmetic number, because the mean of its divisors is an integer number (4175013282).

Almost surely, 2^12525039843 is an apocalyptic number.

12525039843 is a deficient number, since it is larger than the sum of its proper divisors (4175013285).

12525039843 is an equidigital number, since it uses as much as digits as its factorization.

12525039843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175013284.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 12525039843 in words is "twelve billion, five hundred twenty-five million, thirty-nine thousand, eight hundred forty-three".