2621102664013 has 2 divisors, whose sum is σ = 2621102664014. Its totient is φ = 2621102664012.

The previous prime is 2621102663987. The next prime is 2621102664031. The reversal of 2621102664013 is 3104662011262.

Together with next prime (2621102664031) 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., 1515267445444 + 1105835218569 = 1230962^2 + 1051587^2 .

It is a cyclic number.

It is not a de Polignac number, because 2621102664013 - 2⁵ = 2621102663981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2621102664013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2621103664013) 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, 1310551332006 + 1310551332007.

It is an arithmetic number, because the mean of its divisors is an integer number (1310551332007).

Almost surely, 2^{2621102664013} is an apocalyptic number.

It is an amenable number.

2621102664013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2621102664013 is an equidigital number, since it uses as much as digits as its factorization.

2621102664013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

Adding to 2621102664013 its reverse (3104662011262), we get a palindrome (5725764675275).

The spelling of 2621102664013 in words is "two trillion, six hundred twenty-one billion, one hundred two million, six hundred sixty-four thousand, thirteen".