12545202997 has 2 divisors, whose sum is σ = 12545202998. Its totient is φ = 12545202996.

The previous prime is 12545202983. The next prime is 12545203019. The reversal of 12545202997 is 79920254521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11626446276 + 918756721 = 107826^2 + 30311^2 .

It is a cyclic number.

It is not a de Polignac number, because 12545202997 - 2³¹ = 10397719349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12545202697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6272601498 + 6272601499.

It is an arithmetic number, because the mean of its divisors is an integer number (6272601499).

Almost surely, 2^12545202997 is an apocalyptic number.

It is an amenable number.

12545202997 is a deficient number, since it is larger than the sum of its proper divisors (1).

12545202997 is an equidigital number, since it uses as much as digits as its factorization.

12545202997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 12545202997 in words is "twelve billion, five hundred forty-five million, two hundred two thousand, nine hundred ninety-seven".