72009076097 has 4 divisors (see below), whose sum is σ = 82296086976. Its totient is φ = 61722065220.

The previous prime is 72009076067. The next prime is 72009076103. The reversal of 72009076097 is 79067090027.

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: 79067090027 = 487 ⋅162355421.

It is a cyclic number.

It is not a de Polignac number, because 72009076097 - 2¹² = 72009072001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72009076037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5143505429 + ... + 5143505442.

It is an arithmetic number, because the mean of its divisors is an integer number (20574021744).

Almost surely, 2^72009076097 is an apocalyptic number.

It is an amenable number.

72009076097 is a deficient number, since it is larger than the sum of its proper divisors (10287010879).

72009076097 is a wasteful number, since it uses less digits than its factorization.

72009076097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10287010878.

The product of its (nonzero) digits is 333396, while the sum is 47.

The spelling of 72009076097 in words is "seventy-two billion, nine million, seventy-six thousand, ninety-seven".