155426121624539 has 2 divisors, whose sum is σ = 155426121624540. Its totient is φ = 155426121624538.

The previous prime is 155426121624511. The next prime is 155426121624647. The reversal of 155426121624539 is 935426121624551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155426121624539 - 2¹² = 155426121620443 is a prime.

It is not a weakly prime, because it can be changed into another prime (155426121624509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77713060812269 + 77713060812270.

It is an arithmetic number, because the mean of its divisors is an integer number (77713060812270).

Almost surely, 2^{155426121624539} is an apocalyptic number.

155426121624539 is a deficient number, since it is larger than the sum of its proper divisors (1).

155426121624539 is an equidigital number, since it uses as much as digits as its factorization.

155426121624539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552000, while the sum is 56.

The spelling of 155426121624539 in words is "one hundred fifty-five trillion, four hundred twenty-six billion, one hundred twenty-one million, six hundred twenty-four thousand, five hundred thirty-nine".