672475821735829 has 2 divisors, whose sum is σ = 672475821735830. Its totient is φ = 672475821735828.

The previous prime is 672475821735689. The next prime is 672475821735859. The reversal of 672475821735829 is 928537128574276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 648825331202500 + 23650490533329 = 25472050^2 + 4863177^2 .

It is a cyclic number.

It is not a de Polignac number, because 672475821735829 - 2¹⁷ = 672475821604757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672475821735859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336237910867914 + 336237910867915.

It is an arithmetic number, because the mean of its divisors is an integer number (336237910867915).

Almost surely, 2^{672475821735829} is an apocalyptic number.

It is an amenable number.

672475821735829 is a deficient number, since it is larger than the sum of its proper divisors (1).

672475821735829 is an equidigital number, since it uses as much as digits as its factorization.

672475821735829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2844979200, while the sum is 76.

The spelling of 672475821735829 in words is "six hundred seventy-two trillion, four hundred seventy-five billion, eight hundred twenty-one million, seven hundred thirty-five thousand, eight hundred twenty-nine".