128015542446733 has 2 divisors, whose sum is σ = 128015542446734. Its totient is φ = 128015542446732.

The previous prime is 128015542446713. The next prime is 128015542446773. The reversal of 128015542446733 is 337644245510821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127672214419369 + 343328027364 = 11299213^2 + 585942^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128015542446733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128015542446713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64007771223366 + 64007771223367.

It is an arithmetic number, because the mean of its divisors is an integer number (64007771223367).

Almost surely, 2^{128015542446733} is an apocalyptic number.

It is an amenable number.

128015542446733 is a deficient number, since it is larger than the sum of its proper divisors (1).

128015542446733 is an equidigital number, since it uses as much as digits as its factorization.

128015542446733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19353600, while the sum is 55.

The spelling of 128015542446733 in words is "one hundred twenty-eight trillion, fifteen billion, five hundred forty-two million, four hundred forty-six thousand, seven hundred thirty-three".