2013208649623 has 2 divisors, whose sum is σ = 2013208649624. Its totient is φ = 2013208649622.

The previous prime is 2013208649611. The next prime is 2013208649773. The reversal of 2013208649623 is 3269468023102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2013208649623 - 2⁵ = 2013208649591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2013208649923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006604324811 + 1006604324812.

It is an arithmetic number, because the mean of its divisors is an integer number (1006604324812).

Almost surely, 2^{2013208649623} is an apocalyptic number.

2013208649623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013208649623 is an equidigital number, since it uses as much as digits as its factorization.

2013208649623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 2013208649623 in words is "two trillion, thirteen billion, two hundred eight million, six hundred forty-nine thousand, six hundred twenty-three".