126404526361 has 2 divisors, whose sum is σ = 126404526362. Its totient is φ = 126404526360.

The previous prime is 126404526349. The next prime is 126404526397. The reversal of 126404526361 is 163625404621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101008916761 + 25395609600 = 317819^2 + 159360^2 .

It is a cyclic number.

It is not a de Polignac number, because 126404526361 - 2¹³ = 126404518169 is a prime.

It is not a weakly prime, because it can be changed into another prime (126404524361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63202263180 + 63202263181.

It is an arithmetic number, because the mean of its divisors is an integer number (63202263181).

Almost surely, 2^126404526361 is an apocalyptic number.

It is an amenable number.

126404526361 is a deficient number, since it is larger than the sum of its proper divisors (1).

126404526361 is an equidigital number, since it uses as much as digits as its factorization.

126404526361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 126404526361 in words is "one hundred twenty-six billion, four hundred four million, five hundred twenty-six thousand, three hundred sixty-one".