172389480097 has 2 divisors, whose sum is σ = 172389480098. Its totient is φ = 172389480096.

The previous prime is 172389480061. The next prime is 172389480227. The reversal of 172389480097 is 790084983271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117622247521 + 54767232576 = 342961^2 + 234024^2 .

It is a cyclic number.

It is not a de Polignac number, because 172389480097 - 2²³ = 172381091489 is a prime.

It is a super-2 number, since 2×172389480097² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (172389480007) 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, 86194740048 + 86194740049.

It is an arithmetic number, because the mean of its divisors is an integer number (86194740049).

Almost surely, 2^172389480097 is an apocalyptic number.

It is an amenable number.

172389480097 is a deficient number, since it is larger than the sum of its proper divisors (1).

172389480097 is an equidigital number, since it uses as much as digits as its factorization.

172389480097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6096384, while the sum is 58.

The spelling of 172389480097 in words is "one hundred seventy-two billion, three hundred eighty-nine million, four hundred eighty thousand, ninety-seven".