127523412646643 has 16 divisors (see below), whose sum is σ = 140708066218272. Its totient is φ = 114821968800000.

The previous prime is 127523412646633. The next prime is 127523412646673. The reversal of 127523412646643 is 346646214325721.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 127523412646643 - 2⁶ = 127523412646579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127523412646633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18814553 + ... + 24678618.

It is an arithmetic number, because the mean of its divisors is an integer number (8794254138642).

Almost surely, 2^{127523412646643} is an apocalyptic number.

127523412646643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

127523412646643 is a deficient number, since it is larger than the sum of its proper divisors (13184653571629).

127523412646643 is a wasteful number, since it uses less digits than its factorization.

127523412646643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43498726.

The product of its digits is 34836480, while the sum is 56.

The spelling of 127523412646643 in words is "one hundred twenty-seven trillion, five hundred twenty-three billion, four hundred twelve million, six hundred forty-six thousand, six hundred forty-three".