1611219385753 has 2 divisors, whose sum is σ = 1611219385754. Its totient is φ = 1611219385752.

The previous prime is 1611219385751. The next prime is 1611219385799. The reversal of 1611219385753 is 3575839121161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1109320817049 + 501898568704 = 1053243^2 + 708448^2 .

It is a cyclic number.

It is not a de Polignac number, because 1611219385753 - 2¹ = 1611219385751 is a prime.

Together with 1611219385751, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1611219385753.

It is not a weakly prime, because it can be changed into another prime (1611219385751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805609692876 + 805609692877.

It is an arithmetic number, because the mean of its divisors is an integer number (805609692877).

Almost surely, 2^{1611219385753} is an apocalyptic number.

It is an amenable number.

1611219385753 is a deficient number, since it is larger than the sum of its proper divisors (1).

1611219385753 is an equidigital number, since it uses as much as digits as its factorization.

1611219385753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 52.

The spelling of 1611219385753 in words is "one trillion, six hundred eleven billion, two hundred nineteen million, three hundred eighty-five thousand, seven hundred fifty-three".