16435444747273 has 2 divisors, whose sum is σ = 16435444747274. Its totient is φ = 16435444747272.

The previous prime is 16435444747259. The next prime is 16435444747277. The reversal of 16435444747273 is 37274744453461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15095307431824 + 1340137315449 = 3885268^2 + 1157643^2 .

It is a cyclic number.

It is not a de Polignac number, because 16435444747273 - 2¹³ = 16435444739081 is a prime.

It is not a weakly prime, because it can be changed into another prime (16435444747277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8217722373636 + 8217722373637.

It is an arithmetic number, because the mean of its divisors is an integer number (8217722373637).

Almost surely, 2^{16435444747273} is an apocalyptic number.

It is an amenable number.

16435444747273 is a deficient number, since it is larger than the sum of its proper divisors (1).

16435444747273 is an equidigital number, since it uses as much as digits as its factorization.

16435444747273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189665280, while the sum is 61.

The spelling of 16435444747273 in words is "sixteen trillion, four hundred thirty-five billion, four hundred forty-four million, seven hundred forty-seven thousand, two hundred seventy-three".