72271780727 has 8 divisors (see below), whose sum is σ = 78131655600. Its totient is φ = 66617515584.

The previous prime is 72271780703. The next prime is 72271780729. The reversal of 72271780727 is 72708717227.

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 72271780727 - 2¹⁴ = 72271764343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72271780729) 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, 51401702 + ... + 51403107.

It is an arithmetic number, because the mean of its divisors is an integer number (9766456950).

Almost surely, 2^72271780727 is an apocalyptic number.

72271780727 is a deficient number, since it is larger than the sum of its proper divisors (5859874873).

72271780727 is a wasteful number, since it uses less digits than its factorization.

72271780727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102804865.

The product of its (nonzero) digits is 1075648, while the sum is 50.

The spelling of 72271780727 in words is "seventy-two billion, two hundred seventy-one million, seven hundred eighty thousand, seven hundred twenty-seven".