72009415147 has 4 divisors (see below), whose sum is σ = 72013912480. Its totient is φ = 72004917816.

The previous prime is 72009415097. The next prime is 72009415157. The reversal of 72009415147 is 74151490027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74151490027 = 263 ⋅281944829.

It is a cyclic number.

It is not a de Polignac number, because 72009415147 - 2⁷ = 72009415019 is a prime.

It is a super-3 number, since 3×72009415147³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72009415157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2224563 + ... + 2256700.

It is an arithmetic number, because the mean of its divisors is an integer number (18003478120).

Almost surely, 2^72009415147 is an apocalyptic number.

72009415147 is a deficient number, since it is larger than the sum of its proper divisors (4497333).

72009415147 is a wasteful number, since it uses less digits than its factorization.

72009415147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4497332.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 72009415147 in words is "seventy-two billion, nine million, four hundred fifteen thousand, one hundred forty-seven".