12277756523 has 4 divisors (see below), whose sum is σ = 12811572048. Its totient is φ = 11743941000.

The previous prime is 12277756501. The next prime is 12277756549. The reversal of 12277756523 is 32565777221.

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 12277756523 - 2⁶ = 12277756459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12277756123) 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, 266907728 + ... + 266907773.

It is an arithmetic number, because the mean of its divisors is an integer number (3202893012).

Almost surely, 2^12277756523 is an apocalyptic number.

12277756523 is a deficient number, since it is larger than the sum of its proper divisors (533815525).

12277756523 is an equidigital number, since it uses as much as digits as its factorization.

12277756523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533815524.

The product of its digits is 1234800, while the sum is 47.

The spelling of 12277756523 in words is "twelve billion, two hundred seventy-seven million, seven hundred fifty-six thousand, five hundred twenty-three".