13426506435577 has 2 divisors, whose sum is σ = 13426506435578. Its totient is φ = 13426506435576.

The previous prime is 13426506435541. The next prime is 13426506435593. The reversal of 13426506435577 is 77553460562431.

13426506435577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13053400476601 + 373105958976 = 3612949^2 + 610824^2 .

It is a cyclic number.

It is not a de Polignac number, because 13426506435577 - 2⁷ = 13426506435449 is a prime.

It is not a weakly prime, because it can be changed into another prime (13426506445577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6713253217788 + 6713253217789.

It is an arithmetic number, because the mean of its divisors is an integer number (6713253217789).

Almost surely, 2^{13426506435577} is an apocalyptic number.

It is an amenable number.

13426506435577 is a deficient number, since it is larger than the sum of its proper divisors (1).

13426506435577 is an equidigital number, since it uses as much as digits as its factorization.

13426506435577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504000, while the sum is 58.

The spelling of 13426506435577 in words is "thirteen trillion, four hundred twenty-six billion, five hundred six million, four hundred thirty-five thousand, five hundred seventy-seven".