12400410277 has 2 divisors, whose sum is σ = 12400410278. Its totient is φ = 12400410276.

The previous prime is 12400410263. The next prime is 12400410293. The reversal of 12400410277 is 77201400421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12100220001 + 300190276 = 110001^2 + 17326^2 .

It is a cyclic number.

It is not a de Polignac number, because 12400410277 - 2⁷ = 12400410149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12400410377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6200205138 + 6200205139.

It is an arithmetic number, because the mean of its divisors is an integer number (6200205139).

Almost surely, 2^12400410277 is an apocalyptic number.

It is an amenable number.

12400410277 is a deficient number, since it is larger than the sum of its proper divisors (1).

12400410277 is an equidigital number, since it uses as much as digits as its factorization.

12400410277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 28.

Adding to 12400410277 its reverse (77201400421), we get a palindrome (89601810698).

The spelling of 12400410277 in words is "twelve billion, four hundred million, four hundred ten thousand, two hundred seventy-seven".