673515609149 has 2 divisors, whose sum is σ = 673515609150. Its totient is φ = 673515609148.

The previous prime is 673515609103. The next prime is 673515609157. The reversal of 673515609149 is 941906515376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 673413901924 + 101707225 = 820618^2 + 10085^2 .

It is a cyclic number.

It is not a de Polignac number, because 673515609149 - 2¹² = 673515605053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 673515609094 and 673515609103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673515609049) 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, 336757804574 + 336757804575.

It is an arithmetic number, because the mean of its divisors is an integer number (336757804575).

Almost surely, 2^673515609149 is an apocalyptic number.

It is an amenable number.

673515609149 is a deficient number, since it is larger than the sum of its proper divisors (1).

673515609149 is an equidigital number, since it uses as much as digits as its factorization.

673515609149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6123600, while the sum is 56.

The spelling of 673515609149 in words is "six hundred seventy-three billion, five hundred fifteen million, six hundred nine thousand, one hundred forty-nine".