72972485134847 has 8 divisors (see below), whose sum is σ = 74022808880880. Its totient is φ = 71923531677120.

The previous prime is 72972485134837. The next prime is 72972485134867. The reversal of 72972485134847 is 74843158427927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72972485134847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72972485134837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342464804 + ... + 342677817.

It is an arithmetic number, because the mean of its divisors is an integer number (9252851110110).

Almost surely, 2^{72972485134847} is an apocalyptic number.

72972485134847 is a deficient number, since it is larger than the sum of its proper divisors (1050323746033).

72972485134847 is a wasteful number, since it uses less digits than its factorization.

72972485134847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685144153.

The product of its digits is 758661120, while the sum is 71.

The spelling of 72972485134847 in words is "seventy-two trillion, nine hundred seventy-two billion, four hundred eighty-five million, one hundred thirty-four thousand, eight hundred forty-seven".