73535661233 has 8 divisors (see below), whose sum is σ = 75349723176. Its totient is φ = 71722576000.

The previous prime is 73535661197. The next prime is 73535661263. The reversal of 73535661233 is 33216653537.

It can be written as a sum of positive squares in 4 ways, for example, as 2786045089 + 70749616144 = 52783^2 + 265988^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73535661233 - 2¹⁶ = 73535595697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73535661263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90566 + ... + 394047.

It is an arithmetic number, because the mean of its divisors is an integer number (9418715397).

Almost surely, 2^73535661233 is an apocalyptic number.

It is an amenable number.

73535661233 is a deficient number, since it is larger than the sum of its proper divisors (1814061943).

73535661233 is a wasteful number, since it uses less digits than its factorization.

73535661233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488355.

The product of its digits is 1020600, while the sum is 44.

The spelling of 73535661233 in words is "seventy-three billion, five hundred thirty-five million, six hundred sixty-one thousand, two hundred thirty-three".