126539189827 has 2 divisors, whose sum is σ = 126539189828. Its totient is φ = 126539189826.

The previous prime is 126539189813. The next prime is 126539189849. The reversal of 126539189827 is 728981935621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126539189827 - 2³⁵ = 92179451459 is a prime.

It is not a weakly prime, because it can be changed into another prime (126539189927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63269594913 + 63269594914.

It is an arithmetic number, because the mean of its divisors is an integer number (63269594914).

Almost surely, 2^126539189827 is an apocalyptic number.

126539189827 is a deficient number, since it is larger than the sum of its proper divisors (1).

126539189827 is an equidigital number, since it uses as much as digits as its factorization.

126539189827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13063680, while the sum is 61.

The spelling of 126539189827 in words is "one hundred twenty-six billion, five hundred thirty-nine million, one hundred eighty-nine thousand, eight hundred twenty-seven".