73473265289 has 2 divisors, whose sum is σ = 73473265290. Its totient is φ = 73473265288.

The previous prime is 73473265267. The next prime is 73473265321. The reversal of 73473265289 is 98256237437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73048575625 + 424689664 = 270275^2 + 20608^2 .

It is a cyclic number.

It is not a de Polignac number, because 73473265289 - 2³⁶ = 4753788553 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (73473265249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36736632644 + 36736632645.

It is an arithmetic number, because the mean of its divisors is an integer number (36736632645).

Almost surely, 2^73473265289 is an apocalyptic number.

It is an amenable number.

73473265289 is a deficient number, since it is larger than the sum of its proper divisors (1).

73473265289 is an equidigital number, since it uses as much as digits as its factorization.

73473265289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 56.

The spelling of 73473265289 in words is "seventy-three billion, four hundred seventy-three million, two hundred sixty-five thousand, two hundred eighty-nine".