72881986727 has 8 divisors (see below), whose sum is σ = 79688737920. Its totient is φ = 66105421560.

The previous prime is 72881986693. The next prime is 72881986783. The reversal of 72881986727 is 72768918827.

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 72881986727 - 2⁶ = 72881986663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72881916727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7541453 + ... + 7551110.

It is an arithmetic number, because the mean of its divisors is an integer number (9961092240).

Almost surely, 2^72881986727 is an apocalyptic number.

72881986727 is a deficient number, since it is larger than the sum of its proper divisors (6806751193).

72881986727 is a wasteful number, since it uses less digits than its factorization.

72881986727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15093013.

The product of its digits is 37933056, while the sum is 65.

The spelling of 72881986727 in words is "seventy-two billion, eight hundred eighty-one million, nine hundred eighty-six thousand, seven hundred twenty-seven".