19948414702745 has 32 divisors (see below), whose sum is σ = 25474556622240. Its totient is φ = 14944123514880.

The previous prime is 19948414702679. The next prime is 19948414702771. The reversal of 19948414702745 is 54720741484991.

It can be written as a sum of positive squares in 16 ways, for example, as 1612445372041 + 18335969330704 = 1269821^2 + 4282052^2 .

It is not a de Polignac number, because 19948414702745 - 2²⁸ = 19948146267289 is a prime.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12600551 + ... + 14095059.

It is an arithmetic number, because the mean of its divisors is an integer number (796079894445).

Almost surely, 2^{19948414702745} is an apocalyptic number.

It is an amenable number.

19948414702745 is a deficient number, since it is larger than the sum of its proper divisors (5526141919495).

19948414702745 is a wasteful number, since it uses less digits than its factorization.

19948414702745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495325.

The product of its (nonzero) digits is 81285120, while the sum is 65.

The spelling of 19948414702745 in words is "nineteen trillion, nine hundred forty-eight billion, four hundred fourteen million, seven hundred two thousand, seven hundred forty-five".