72927168715853 has 2 divisors, whose sum is σ = 72927168715854. Its totient is φ = 72927168715852.

The previous prime is 72927168715831. The next prime is 72927168715859. The reversal of 72927168715853 is 35851786172927.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38892522813769 + 34034645902084 = 6236387^2 + 5833922^2 .

It is a cyclic number.

It is not a de Polignac number, because 72927168715853 - 2⁴² = 68529122204749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72927168715859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36463584357926 + 36463584357927.

It is an arithmetic number, because the mean of its divisors is an integer number (36463584357927).

Almost surely, 2^{72927168715853} is an apocalyptic number.

It is an amenable number.

72927168715853 is a deficient number, since it is larger than the sum of its proper divisors (1).

72927168715853 is an equidigital number, since it uses as much as digits as its factorization.

72927168715853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 355622400, while the sum is 71.

The spelling of 72927168715853 in words is "seventy-two trillion, nine hundred twenty-seven billion, one hundred sixty-eight million, seven hundred fifteen thousand, eight hundred fifty-three".