73404775033 has 2 divisors, whose sum is σ = 73404775034. Its totient is φ = 73404775032.

The previous prime is 73404775021. The next prime is 73404775061. The reversal of 73404775033 is 33057740437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73263331584 + 141443449 = 270672^2 + 11893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73404775033 is a prime.

It is not a weakly prime, because it can be changed into another prime (73404775063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36702387516 + 36702387517.

It is an arithmetic number, because the mean of its divisors is an integer number (36702387517).

Almost surely, 2^73404775033 is an apocalyptic number.

It is an amenable number.

73404775033 is a deficient number, since it is larger than the sum of its proper divisors (1).

73404775033 is an equidigital number, since it uses as much as digits as its factorization.

73404775033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 740880, while the sum is 43.

The spelling of 73404775033 in words is "seventy-three billion, four hundred four million, seven hundred seventy-five thousand, thirty-three".