72767403073 has 4 divisors (see below), whose sum is σ = 75114738688. Its totient is φ = 70420067460.

The previous prime is 72767403019. The next prime is 72767403077. The reversal of 72767403073 is 37030476727.

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 an emirpimes, since its reverse is a distinct semiprime: 37030476727 = 311 ⋅119069057.

It is a cyclic number.

It is not a de Polignac number, because 72767403073 - 2¹⁷ = 72767272001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72767403077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173667761 + ... + 1173667822.

It is an arithmetic number, because the mean of its divisors is an integer number (18778684672).

Almost surely, 2^72767403073 is an apocalyptic number.

It is an amenable number.

72767403073 is a deficient number, since it is larger than the sum of its proper divisors (2347335615).

72767403073 is a wasteful number, since it uses less digits than its factorization.

72767403073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347335614.

The product of its (nonzero) digits is 1037232, while the sum is 46.

The spelling of 72767403073 in words is "seventy-two billion, seven hundred sixty-seven million, four hundred three thousand, seventy-three".