12510434477 has 2 divisors, whose sum is σ = 12510434478. Its totient is φ = 12510434476.

The previous prime is 12510434471. The next prime is 12510434483. The reversal of 12510434477 is 77443401521.

It is a balanced prime because it is at equal distance from previous prime (12510434471) and next prime (12510434483).

It can be written as a sum of positive squares in only one way, i.e., 6731546116 + 5778888361 = 82046^2 + 76019^2 .

It is a cyclic number.

It is not a de Polignac number, because 12510434477 - 2⁸ = 12510434221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12510434477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12510434471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6255217238 + 6255217239.

It is an arithmetic number, because the mean of its divisors is an integer number (6255217239).

Almost surely, 2^12510434477 is an apocalyptic number.

It is an amenable number.

12510434477 is a deficient number, since it is larger than the sum of its proper divisors (1).

12510434477 is an equidigital number, since it uses as much as digits as its factorization.

12510434477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 38.

Adding to 12510434477 its reverse (77443401521), we get a palindrome (89953835998).

The spelling of 12510434477 in words is "twelve billion, five hundred ten million, four hundred thirty-four thousand, four hundred seventy-seven".