72334189809 has 96 divisors (see below), whose sum is σ = 125793740800. Its totient is φ = 40683658752.

The previous prime is 72334189783. The next prime is 72334189813. The reversal of 72334189809 is 90898143327.

It is not a de Polignac number, because 72334189809 - 2⁵ = 72334189777 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72334189859) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32833302 + ... + 32835504.

Almost surely, 2^72334189809 is an apocalyptic number.

It is an amenable number.

72334189809 is a deficient number, since it is larger than the sum of its proper divisors (53459550991).

72334189809 is a wasteful number, since it uses less digits than its factorization.

72334189809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521 (or 2509 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 72334189809 in words is "seventy-two billion, three hundred thirty-four million, one hundred eighty-nine thousand, eight hundred nine".