64272718327 has 8 divisors (see below), whose sum is σ = 65115545600. Its totient is φ = 63430622424.

The previous prime is 64272718309. The next prime is 64272718337. The reversal of 64272718327 is 72381727246.

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-64272718327 is a prime.

It is a super-2 number, since 2×64272718327² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64272718337) 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, 4803 + ... + 358564.

It is an arithmetic number, because the mean of its divisors is an integer number (8139443200).

Almost surely, 2^64272718327 is an apocalyptic number.

64272718327 is a deficient number, since it is larger than the sum of its proper divisors (842827273).

64272718327 is a wasteful number, since it uses less digits than its factorization.

64272718327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365685.

The product of its digits is 1580544, while the sum is 49.

The spelling of 64272718327 in words is "sixty-four billion, two hundred seventy-two million, seven hundred eighteen thousand, three hundred twenty-seven".