72273535547 has 2 divisors, whose sum is σ = 72273535548. Its totient is φ = 72273535546.

The previous prime is 72273535507. The next prime is 72273535589. The reversal of 72273535547 is 74553537227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72273535547 - 2⁶ = 72273535483 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72273535495 and 72273535504.

It is not a weakly prime, because it can be changed into another prime (72273535507) 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, 36136767773 + 36136767774.

It is an arithmetic number, because the mean of its divisors is an integer number (36136767774).

Almost surely, 2^72273535547 is an apocalyptic number.

72273535547 is a deficient number, since it is larger than the sum of its proper divisors (1).

72273535547 is an equidigital number, since it uses as much as digits as its factorization.

72273535547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6174000, while the sum is 50.

The spelling of 72273535547 in words is "seventy-two billion, two hundred seventy-three million, five hundred thirty-five thousand, five hundred forty-seven".