19528375680001 has 2 divisors, whose sum is σ = 19528375680002. Its totient is φ = 19528375680000.

The previous prime is 19528375679999. The next prime is 19528375680053. The reversal of 19528375680001 is 10008657382591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19425174760000 + 103200920001 = 4407400^2 + 321249^2 .

It is a cyclic number.

It is not a de Polignac number, because 19528375680001 - 2¹ = 19528375679999 is a prime.

Together with 19528375679999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (19528375680101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9764187840000 + 9764187840001.

It is an arithmetic number, because the mean of its divisors is an integer number (9764187840001).

Almost surely, 2^{19528375680001} is an apocalyptic number.

It is an amenable number.

19528375680001 is a deficient number, since it is larger than the sum of its proper divisors (1).

19528375680001 is an equidigital number, since it uses as much as digits as its factorization.

19528375680001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The spelling of 19528375680001 in words is "nineteen trillion, five hundred twenty-eight billion, three hundred seventy-five million, six hundred eighty thousand, one".