72215851227 has 8 divisors (see below), whose sum is σ = 103694555664. Its totient is φ = 44440523808.

The previous prime is 72215851217. The next prime is 72215851241.

It is a happy number.

72215851227 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 72215851227 - 2¹⁴ = 72215834843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72215851217) 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, 925844208 + ... + 925844285.

It is an arithmetic number, because the mean of its divisors is an integer number (12961819458).

Almost surely, 2^72215851227 is an apocalyptic number.

72215851227 is a deficient number, since it is larger than the sum of its proper divisors (31478704437).

72215851227 is a wasteful number, since it uses less digits than its factorization.

72215851227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851688509.

The product of its digits is 156800, while the sum is 42.

The spelling of 72215851227 in words is "seventy-two billion, two hundred fifteen million, eight hundred fifty-one thousand, two hundred twenty-seven".