12520239277 has 16 divisors (see below), whose sum is σ = 15413231232. Its totient is φ = 9903741120.

The previous prime is 12520239257. The next prime is 12520239283. The reversal of 12520239277 is 77293202521.

It is a happy number.

12520239277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12520239277 - 2¹⁹ = 12519714989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520239257) 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 15 ways as a sum of consecutive naturals, for example, 429702 + ... + 457912.

It is an arithmetic number, because the mean of its divisors is an integer number (963326952).

Almost surely, 2^12520239277 is an apocalyptic number.

It is an amenable number.

12520239277 is a deficient number, since it is larger than the sum of its proper divisors (2892991955).

12520239277 is a wasteful number, since it uses less digits than its factorization.

12520239277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33108.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 12520239277 in words is "twelve billion, five hundred twenty million, two hundred thirty-nine thousand, two hundred seventy-seven".