72947474927 has 8 divisors (see below), whose sum is σ = 73839909360. Its totient is φ = 72058377600.

The previous prime is 72947474893. The next prime is 72947474939.

72947474927 is nontrivially palindromic in base 10.

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 72947474927 - 2¹² = 72947470831 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72947474927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72947774927) 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 7 ways as a sum of consecutive naturals, for example, 790277 + ... + 877742.

It is an arithmetic number, because the mean of its divisors is an integer number (9229988670).

Almost surely, 2^72947474927 is an apocalyptic number.

72947474927 is a deficient number, since it is larger than the sum of its proper divisors (892434433).

72947474927 is a wasteful number, since it uses less digits than its factorization.

72947474927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668553.

The product of its digits is 49787136, while the sum is 62.

The spelling of 72947474927 in words is "seventy-two billion, nine hundred forty-seven million, four hundred seventy-four thousand, nine hundred twenty-seven".