12505451632357 has 2 divisors, whose sum is σ = 12505451632358. Its totient is φ = 12505451632356.

The previous prime is 12505451632337. The next prime is 12505451632363. The reversal of 12505451632357 is 75323615450521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7002326808481 + 5503124823876 = 2646191^2 + 2345874^2 .

It is a cyclic number.

It is not a de Polignac number, because 12505451632357 - 2³⁵ = 12471091893989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12505451632357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12505451632337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6252725816178 + 6252725816179.

It is an arithmetic number, because the mean of its divisors is an integer number (6252725816179).

Almost surely, 2^{12505451632357} is an apocalyptic number.

It is an amenable number.

12505451632357 is a deficient number, since it is larger than the sum of its proper divisors (1).

12505451632357 is an equidigital number, since it uses as much as digits as its factorization.

12505451632357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780000, while the sum is 49.

The spelling of 12505451632357 in words is "twelve trillion, five hundred five billion, four hundred fifty-one million, six hundred thirty-two thousand, three hundred fifty-seven".