72555627073 has 2 divisors, whose sum is σ = 72555627074. Its totient is φ = 72555627072.

The previous prime is 72555627031. The next prime is 72555627077. The reversal of 72555627073 is 37072655527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63717370929 + 8838256144 = 252423^2 + 94012^2 .

It is an emirp because it is prime and its reverse (37072655527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72555627073 - 2²¹ = 72553529921 is a prime.

It is not a weakly prime, because it can be changed into another prime (72555627077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36277813536 + 36277813537.

It is an arithmetic number, because the mean of its divisors is an integer number (36277813537).

Almost surely, 2^72555627073 is an apocalyptic number.

It is an amenable number.

72555627073 is a deficient number, since it is larger than the sum of its proper divisors (1).

72555627073 is an equidigital number, since it uses as much as digits as its factorization.

72555627073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3087000, while the sum is 49.

The spelling of 72555627073 in words is "seventy-two billion, five hundred fifty-five million, six hundred twenty-seven thousand, seventy-three".