13700009732621 has 2 divisors, whose sum is σ = 13700009732622. Its totient is φ = 13700009732620.

The previous prime is 13700009732611. The next prime is 13700009732753. The reversal of 13700009732621 is 12623790000731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13258781670121 + 441228062500 = 3641261^2 + 664250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13700009732621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13700009732611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6850004866310 + 6850004866311.

It is an arithmetic number, because the mean of its divisors is an integer number (6850004866311).

Almost surely, 2^{13700009732621} is an apocalyptic number.

It is an amenable number.

13700009732621 is a deficient number, since it is larger than the sum of its proper divisors (1).

13700009732621 is an equidigital number, since it uses as much as digits as its factorization.

13700009732621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 41.

The spelling of 13700009732621 in words is "thirteen trillion, seven hundred billion, nine million, seven hundred thirty-two thousand, six hundred twenty-one".