13621653319 has 2 divisors, whose sum is σ = 13621653320. Its totient is φ = 13621653318.

The previous prime is 13621653313. The next prime is 13621653323. The reversal of 13621653319 is 91335612631.

It is a strong prime.

It is an emirp because it is prime and its reverse (91335612631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13621653319 - 2¹¹ = 13621651271 is a prime.

It is a super-2 number, since 2×13621653319² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13621653313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6810826659 + 6810826660.

It is an arithmetic number, because the mean of its divisors is an integer number (6810826660).

Almost surely, 2^13621653319 is an apocalyptic number.

13621653319 is a deficient number, since it is larger than the sum of its proper divisors (1).

13621653319 is an equidigital number, since it uses as much as digits as its factorization.

13621653319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 40.

The spelling of 13621653319 in words is "thirteen billion, six hundred twenty-one million, six hundred fifty-three thousand, three hundred nineteen".