252628072069 has 2 divisors, whose sum is σ = 252628072070. Its totient is φ = 252628072068.

The previous prime is 252628072043. The next prime is 252628072139. The reversal of 252628072069 is 960270826252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209338276225 + 43289795844 = 457535^2 + 208062^2 .

It is a cyclic number.

It is not a de Polignac number, because 252628072069 - 2¹⁷ = 252627940997 is a prime.

It is a super-2 number, since 2×252628072069² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252628072019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126314036034 + 126314036035.

It is an arithmetic number, because the mean of its divisors is an integer number (126314036035).

Almost surely, 2^252628072069 is an apocalyptic number.

It is an amenable number.

252628072069 is a deficient number, since it is larger than the sum of its proper divisors (1).

252628072069 is an equidigital number, since it uses as much as digits as its factorization.

252628072069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 252628072069 in words is "two hundred fifty-two billion, six hundred twenty-eight million, seventy-two thousand, sixty-nine".