672497992417 has 2 divisors, whose sum is σ = 672497992418. Its totient is φ = 672497992416.

The previous prime is 672497992403. The next prime is 672497992483. The reversal of 672497992417 is 714299794276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 650669702881 + 21828289536 = 806641^2 + 147744^2 .

It is a cyclic number.

It is not a de Polignac number, because 672497992417 - 2¹⁵ = 672497959649 is a prime.

It is not a weakly prime, because it can be changed into another prime (672497992487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336248996208 + 336248996209.

It is an arithmetic number, because the mean of its divisors is an integer number (336248996209).

Almost surely, 2^672497992417 is an apocalyptic number.

It is an amenable number.

672497992417 is a deficient number, since it is larger than the sum of its proper divisors (1).

672497992417 is an equidigital number, since it uses as much as digits as its factorization.

672497992417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96018048, while the sum is 67.

The spelling of 672497992417 in words is "six hundred seventy-two billion, four hundred ninety-seven million, nine hundred ninety-two thousand, four hundred seventeen".