13745506673 has 2 divisors, whose sum is σ = 13745506674. Its totient is φ = 13745506672.

The previous prime is 13745506669. The next prime is 13745506693. The reversal of 13745506673 is 37660554731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8123056384 + 5622450289 = 90128^2 + 74983^2 .

It is a cyclic number.

It is not a de Polignac number, because 13745506673 - 2² = 13745506669 is a prime.

It is not a weakly prime, because it can be changed into another prime (13745506633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6872753336 + 6872753337.

It is an arithmetic number, because the mean of its divisors is an integer number (6872753337).

Almost surely, 2^13745506673 is an apocalyptic number.

It is an amenable number.

13745506673 is a deficient number, since it is larger than the sum of its proper divisors (1).

13745506673 is an equidigital number, since it uses as much as digits as its factorization.

13745506673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1587600, while the sum is 47.

The spelling of 13745506673 in words is "thirteen billion, seven hundred forty-five million, five hundred six thousand, six hundred seventy-three".