3784645615273 has 2 divisors, whose sum is σ = 3784645615274. Its totient is φ = 3784645615272.

The previous prime is 3784645615241. The next prime is 3784645615279. The reversal of 3784645615273 is 3725165464873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3683589655824 + 101055959449 = 1919268^2 + 317893^2 .

It is a cyclic number.

It is not a de Polignac number, because 3784645615273 - 2⁵ = 3784645615241 is a prime.

It is not a weakly prime, because it can be changed into another prime (3784645615279) 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 as a sum of consecutive naturals, namely, 1892322807636 + 1892322807637.

It is an arithmetic number, because the mean of its divisors is an integer number (1892322807637).

Almost surely, 2^{3784645615273} is an apocalyptic number.

It is an amenable number.

3784645615273 is a deficient number, since it is larger than the sum of its proper divisors (1).

3784645615273 is an equidigital number, since it uses as much as digits as its factorization.

3784645615273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 101606400, while the sum is 61.

The spelling of 3784645615273 in words is "three trillion, seven hundred eighty-four billion, six hundred forty-five million, six hundred fifteen thousand, two hundred seventy-three".