13401721607 has 2 divisors, whose sum is σ = 13401721608. Its totient is φ = 13401721606.

The previous prime is 13401721583. The next prime is 13401721637. The reversal of 13401721607 is 70612710431.

13401721607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13401721607 - 2³² = 9106754311 is a prime.

It is a super-2 number, since 2×13401721607² (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 (13401721637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6700860803 + 6700860804.

It is an arithmetic number, because the mean of its divisors is an integer number (6700860804).

Almost surely, 2^13401721607 is an apocalyptic number.

13401721607 is a deficient number, since it is larger than the sum of its proper divisors (1).

13401721607 is an equidigital number, since it uses as much as digits as its factorization.

13401721607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The spelling of 13401721607 in words is "thirteen billion, four hundred one million, seven hundred twenty-one thousand, six hundred seven".