673373201513 has 2 divisors, whose sum is σ = 673373201514. Its totient is φ = 673373201512.

The previous prime is 673373201489. The next prime is 673373201531. The reversal of 673373201513 is 315102373376.

Together with next prime (673373201531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 649808495449 + 23564706064 = 806107^2 + 153508^2 .

It is a cyclic number.

It is not a de Polignac number, because 673373201513 - 2¹² = 673373197417 is a prime.

It is not a weakly prime, because it can be changed into another prime (673373201213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336686600756 + 336686600757.

It is an arithmetic number, because the mean of its divisors is an integer number (336686600757).

Almost surely, 2^673373201513 is an apocalyptic number.

It is an amenable number.

673373201513 is a deficient number, since it is larger than the sum of its proper divisors (1).

673373201513 is an equidigital number, since it uses as much as digits as its factorization.

673373201513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 41.

Adding to 673373201513 its reverse (315102373376), we get a palindrome (988475574889).

The spelling of 673373201513 in words is "six hundred seventy-three billion, three hundred seventy-three million, two hundred one thousand, five hundred thirteen".