12500444377 has 2 divisors, whose sum is σ = 12500444378. Its totient is φ = 12500444376.

The previous prime is 12500444351. The next prime is 12500444419. The reversal of 12500444377 is 77344400521.

12500444377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12284618896 + 215825481 = 110836^2 + 14691^2 .

It is a cyclic number.

It is not a de Polignac number, because 12500444377 - 2²³ = 12492055769 is a prime.

It is a super-2 number, since 2×12500444377² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12500444977) 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 as a sum of consecutive naturals, namely, 6250222188 + 6250222189.

It is an arithmetic number, because the mean of its divisors is an integer number (6250222189).

Almost surely, 2^12500444377 is an apocalyptic number.

It is an amenable number.

12500444377 is a deficient number, since it is larger than the sum of its proper divisors (1).

12500444377 is an equidigital number, since it uses as much as digits as its factorization.

12500444377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 37.

Adding to 12500444377 its reverse (77344400521), we get a palindrome (89844844898).

The spelling of 12500444377 in words is "twelve billion, five hundred million, four hundred forty-four thousand, three hundred seventy-seven".