72477484147 has 4 divisors (see below), whose sum is σ = 73006517016. Its totient is φ = 71948451280.

The previous prime is 72477484061. The next prime is 72477484159. The reversal of 72477484147 is 74148477427.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74148477427 = 80849 ⋅917123.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72477484147 is a prime.

It is a super-3 number, since 3×72477484147³ (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 (72477404147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264516229 + ... + 264516502.

It is an arithmetic number, because the mean of its divisors is an integer number (18251629254).

Almost surely, 2^72477484147 is an apocalyptic number.

72477484147 is a deficient number, since it is larger than the sum of its proper divisors (529032869).

72477484147 is a wasteful number, since it uses less digits than its factorization.

72477484147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529032868.

The product of its digits is 9834496, while the sum is 55.

The spelling of 72477484147 in words is "seventy-two billion, four hundred seventy-seven million, four hundred eighty-four thousand, one hundred forty-seven".