72152254542227 has 2 divisors, whose sum is σ = 72152254542228. Its totient is φ = 72152254542226.

The previous prime is 72152254542187. The next prime is 72152254542239. The reversal of 72152254542227 is 72224545225127.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72152254542227 - 2¹⁴ = 72152254525843 is a prime.

It is a super-2 number, since 2×72152254542227² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72152254532227) 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 as a sum of consecutive naturals, namely, 36076127271113 + 36076127271114.

It is an arithmetic number, because the mean of its divisors is an integer number (36076127271114).

Almost surely, 2^{72152254542227} is an apocalyptic number.

72152254542227 is a deficient number, since it is larger than the sum of its proper divisors (1).

72152254542227 is an equidigital number, since it uses as much as digits as its factorization.

72152254542227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6272000, while the sum is 50.

The spelling of 72152254542227 in words is "seventy-two trillion, one hundred fifty-two billion, two hundred fifty-four million, five hundred forty-two thousand, two hundred twenty-seven".