12725231277 has 16 divisors (see below), whose sum is σ = 18511467840. Its totient is φ = 7711411200.

The previous prime is 12725231257. The next prime is 12725231287. The reversal of 12725231277 is 77213252721.

It is not a de Polignac number, because 12725231277 - 2⁸ = 12725231021 is a prime.

It is a super-2 number, since 2×12725231277² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12725231227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418299 + ... + 447687.

It is an arithmetic number, because the mean of its divisors is an integer number (1156966740).

Almost surely, 2^12725231277 is an apocalyptic number.

It is an amenable number.

12725231277 is a deficient number, since it is larger than the sum of its proper divisors (5786236563).

12725231277 is a wasteful number, since it uses less digits than its factorization.

12725231277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42524.

The product of its digits is 82320, while the sum is 39.

Adding to 12725231277 its reverse (77213252721), we get a palindrome (89938483998).

The spelling of 12725231277 in words is "twelve billion, seven hundred twenty-five million, two hundred thirty-one thousand, two hundred seventy-seven".