72562213117 has 2 divisors, whose sum is σ = 72562213118. Its totient is φ = 72562213116.

The previous prime is 72562213111. The next prime is 72562213153. The reversal of 72562213117 is 71131226527.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39981602116 + 32580611001 = 199954^2 + 180501^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72562213117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72562213111) 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 as a sum of consecutive naturals, namely, 36281106558 + 36281106559.

It is an arithmetic number, because the mean of its divisors is an integer number (36281106559).

Almost surely, 2^72562213117 is an apocalyptic number.

It is an amenable number.

72562213117 is a deficient number, since it is larger than the sum of its proper divisors (1).

72562213117 is an equidigital number, since it uses as much as digits as its factorization.

72562213117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 37.

The spelling of 72562213117 in words is "seventy-two billion, five hundred sixty-two million, two hundred thirteen thousand, one hundred seventeen".