125536643620235 has 16 divisors (see below), whose sum is σ = 152108199212736. Its totient is φ = 99453184985088.

The previous prime is 125536643620187. The next prime is 125536643620237. The reversal of 125536643620235 is 532026346635521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 125536643620235 - 2²⁶ = 125536576511371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125536643620237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47524187 + ... + 50096123.

It is an arithmetic number, because the mean of its divisors is an integer number (9506762450796).

Almost surely, 2^{125536643620235} is an apocalyptic number.

125536643620235 is a deficient number, since it is larger than the sum of its proper divisors (26571555592501).

125536643620235 is a wasteful number, since it uses less digits than its factorization.

125536643620235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666822.

The product of its (nonzero) digits is 23328000, while the sum is 53.

The spelling of 125536643620235 in words is "one hundred twenty-five trillion, five hundred thirty-six billion, six hundred forty-three million, six hundred twenty thousand, two hundred thirty-five".