172424156899 has 2 divisors, whose sum is σ = 172424156900. Its totient is φ = 172424156898.

The previous prime is 172424156797. The next prime is 172424156941. The reversal of 172424156899 is 998651424271.

172424156899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172424156899 - 2¹³ = 172424148707 is a prime.

It is not a weakly prime, because it can be changed into another prime (172424126899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86212078449 + 86212078450.

It is an arithmetic number, because the mean of its divisors is an integer number (86212078450).

Almost surely, 2^172424156899 is an apocalyptic number.

172424156899 is a deficient number, since it is larger than the sum of its proper divisors (1).

172424156899 is an equidigital number, since it uses as much as digits as its factorization.

172424156899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 58.

The spelling of 172424156899 in words is "one hundred seventy-two billion, four hundred twenty-four million, one hundred fifty-six thousand, eight hundred ninety-nine".