72040604027 has 4 divisors (see below), whose sum is σ = 82332118896. Its totient is φ = 61749089160.

The previous prime is 72040603861. The next prime is 72040604029.

72040604027 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72040604027 - 2²⁸ = 71772168571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72040603984 and 72040604002.

It is not an unprimeable number, because it can be changed into a prime (72040604029) 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, 5145757424 + ... + 5145757437.

It is an arithmetic number, because the mean of its divisors is an integer number (20583029724).

Almost surely, 2^72040604027 is an apocalyptic number.

72040604027 is a deficient number, since it is larger than the sum of its proper divisors (10291514869).

72040604027 is a wasteful number, since it uses less digits than its factorization.

72040604027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10291514868.

The product of its (nonzero) digits is 18816, while the sum is 32.

The spelling of 72040604027 in words is "seventy-two billion, forty million, six hundred four thousand, twenty-seven".