72476539547 has 4 divisors (see below), whose sum is σ = 76291094280. Its totient is φ = 68661984816.

The previous prime is 72476539519. The next prime is 72476539567. The reversal of 72476539547 is 74593567427.

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 72476539547 - 2¹⁰ = 72476538523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72476539567) 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, 1907277338 + ... + 1907277375.

It is an arithmetic number, because the mean of its divisors is an integer number (19072773570).

Almost surely, 2^72476539547 is an apocalyptic number.

72476539547 is a deficient number, since it is larger than the sum of its proper divisors (3814554733).

72476539547 is a wasteful number, since it uses less digits than its factorization.

72476539547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3814554732.

The product of its digits is 44452800, while the sum is 59.

The spelling of 72476539547 in words is "seventy-two billion, four hundred seventy-six million, five hundred thirty-nine thousand, five hundred forty-seven".