172493936029 has 2 divisors, whose sum is σ = 172493936030. Its totient is φ = 172493936028.

The previous prime is 172493936003. The next prime is 172493936077. The reversal of 172493936029 is 920639394271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172081439929 + 412496100 = 414827^2 + 20310^2 .

It is a cyclic number.

It is not a de Polignac number, because 172493936029 - 2¹⁷ = 172493804957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172493930029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86246968014 + 86246968015.

It is an arithmetic number, because the mean of its divisors is an integer number (86246968015).

Almost surely, 2^172493936029 is an apocalyptic number.

It is an amenable number.

172493936029 is a deficient number, since it is larger than the sum of its proper divisors (1).

172493936029 is an equidigital number, since it uses as much as digits as its factorization.

172493936029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4408992, while the sum is 55.

The spelling of 172493936029 in words is "one hundred seventy-two billion, four hundred ninety-three million, nine hundred thirty-six thousand, twenty-nine".