12562026457 has 2 divisors, whose sum is σ = 12562026458. Its totient is φ = 12562026456.

The previous prime is 12562026437. The next prime is 12562026467. The reversal of 12562026457 is 75462026521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11333944521 + 1228081936 = 106461^2 + 35044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12562026457 is a prime.

It is not a weakly prime, because it can be changed into another prime (12562026437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6281013228 + 6281013229.

It is an arithmetic number, because the mean of its divisors is an integer number (6281013229).

Almost surely, 2^12562026457 is an apocalyptic number.

It is an amenable number.

12562026457 is a deficient number, since it is larger than the sum of its proper divisors (1).

12562026457 is an equidigital number, since it uses as much as digits as its factorization.

12562026457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 12562026457 in words is "twelve billion, five hundred sixty-two million, twenty-six thousand, four hundred fifty-seven".