252179387189 has 2 divisors, whose sum is σ = 252179387190. Its totient is φ = 252179387188.

The previous prime is 252179387177. The next prime is 252179387261. The reversal of 252179387189 is 981783971252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225474924964 + 26704462225 = 474842^2 + 163415^2 .

It is a cyclic number.

It is not a de Polignac number, because 252179387189 - 2³⁶ = 183459910453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252179387129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126089693594 + 126089693595.

It is an arithmetic number, because the mean of its divisors is an integer number (126089693595).

Almost surely, 2^252179387189 is an apocalyptic number.

It is an amenable number.

252179387189 is a deficient number, since it is larger than the sum of its proper divisors (1).

252179387189 is an equidigital number, since it uses as much as digits as its factorization.

252179387189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 62.

The spelling of 252179387189 in words is "two hundred fifty-two billion, one hundred seventy-nine million, three hundred eighty-seven thousand, one hundred eighty-nine".