72433810733 has 4 divisors (see below), whose sum is σ = 72434501280. Its totient is φ = 72433120188.

The previous prime is 72433810721. The next prime is 72433810793. The reversal of 72433810733 is 33701833427.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 33701833427 = 31 ⋅1087155917.

It is a cyclic number.

It is not a de Polignac number, because 72433810733 - 2⁴ = 72433810717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72433810793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151793 + ... + 409766.

It is an arithmetic number, because the mean of its divisors is an integer number (18108625320).

Almost surely, 2^72433810733 is an apocalyptic number.

It is an amenable number.

72433810733 is a deficient number, since it is larger than the sum of its proper divisors (690547).

72433810733 is a wasteful number, since it uses less digits than its factorization.

72433810733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690546.

The product of its (nonzero) digits is 254016, while the sum is 41.

The spelling of 72433810733 in words is "seventy-two billion, four hundred thirty-three million, eight hundred ten thousand, seven hundred thirty-three".