12451277434 has 4 divisors (see below), whose sum is σ = 18676916154. Its totient is φ = 6225638716.

The previous prime is 12451277431. The next prime is 12451277471. The reversal of 12451277434 is 43477215421.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 9909605209 + 2541672225 = 99547^2 + 50415^2 .

It is not an unprimeable number, because it can be changed into a prime (12451277431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3112819357 + ... + 3112819360.

Almost surely, 2^12451277434 is an apocalyptic number.

12451277434 is a deficient number, since it is larger than the sum of its proper divisors (6225638720).

12451277434 is an equidigital number, since it uses as much as digits as its factorization.

12451277434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6225638719.

The product of its digits is 188160, while the sum is 40.

The spelling of 12451277434 in words is "twelve billion, four hundred fifty-one million, two hundred seventy-seven thousand, four hundred thirty-four".