19225608375561 has 32 divisors (see below), whose sum is σ = 29378790475776. Its totient is φ = 10955120400000.

The previous prime is 19225608375539. The next prime is 19225608375569. The reversal of 19225608375561 is 16557380652291.

It is not a de Polignac number, because 19225608375561 - 2¹⁹ = 19225607851273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19225608375495 and 19225608375504.

It is not an unprimeable number, because it can be changed into a prime (19225608375569) 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 31 ways as a sum of consecutive naturals, for example, 9852061 + ... + 11641061.

It is an arithmetic number, because the mean of its divisors is an integer number (918087202368).

Almost surely, 2^{19225608375561} is an apocalyptic number.

It is an amenable number.

19225608375561 is a deficient number, since it is larger than the sum of its proper divisors (10153182100215).

19225608375561 is a wasteful number, since it uses less digits than its factorization.

19225608375561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790453.

The product of its (nonzero) digits is 27216000, while the sum is 60.

The spelling of 19225608375561 in words is "nineteen trillion, two hundred twenty-five billion, six hundred eight million, three hundred seventy-five thousand, five hundred sixty-one".