72466679189 has 8 divisors (see below), whose sum is σ = 74446296888. Its totient is φ = 70488169920.

The previous prime is 72466679137. The next prime is 72466679339. The reversal of 72466679189 is 98197666427.

It can be written as a sum of positive squares in 4 ways, for example, as 123432100 + 72343247089 = 11110^2 + 268967^2 .

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 72466679189 - 2²⁰ = 72465630613 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72466679489) 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, 143702 + ... + 406919.

It is an arithmetic number, because the mean of its divisors is an integer number (9305787111).

Almost surely, 2^72466679189 is an apocalyptic number.

It is an amenable number.

72466679189 is a deficient number, since it is larger than the sum of its proper divisors (1979617699).

72466679189 is a wasteful number, since it uses less digits than its factorization.

72466679189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554215.

The product of its digits is 54867456, while the sum is 65.

The spelling of 72466679189 in words is "seventy-two billion, four hundred sixty-six million, six hundred seventy-nine thousand, one hundred eighty-nine".