172499339029 has 2 divisors, whose sum is σ = 172499339030. Its totient is φ = 172499339028.

The previous prime is 172499339011. The next prime is 172499339053. The reversal of 172499339029 is 920933994271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134990108100 + 37509230929 = 367410^2 + 193673^2 .

It is an emirp because it is prime and its reverse (920933994271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172499339029 - 2¹⁵ = 172499306261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172499339329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86249669514 + 86249669515.

It is an arithmetic number, because the mean of its divisors is an integer number (86249669515).

Almost surely, 2^172499339029 is an apocalyptic number.

It is an amenable number.

172499339029 is a deficient number, since it is larger than the sum of its proper divisors (1).

172499339029 is an equidigital number, since it uses as much as digits as its factorization.

172499339029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6613488, while the sum is 58.

The spelling of 172499339029 in words is "one hundred seventy-two billion, four hundred ninety-nine million, three hundred thirty-nine thousand, twenty-nine".