12577226671 has 4 divisors (see below), whose sum is σ = 13317063552. Its totient is φ = 11837389792.

The previous prime is 12577226657. The next prime is 12577226677. The reversal of 12577226671 is 17662277521.

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 12577226671 - 2³³ = 3987292079 is a prime.

It is a super-3 number, since 3×12577226671³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12577226677) 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 3 ways as a sum of consecutive naturals, for example, 369918415 + ... + 369918448.

It is an arithmetic number, because the mean of its divisors is an integer number (3329265888).

Almost surely, 2^12577226671 is an apocalyptic number.

12577226671 is a deficient number, since it is larger than the sum of its proper divisors (739836881).

12577226671 is an equidigital number, since it uses as much as digits as its factorization.

12577226671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739836880.

The product of its digits is 493920, while the sum is 46.

The spelling of 12577226671 in words is "twelve billion, five hundred seventy-seven million, two hundred twenty-six thousand, six hundred seventy-one".