16437986413 has 2 divisors, whose sum is σ = 16437986414. Its totient is φ = 16437986412.

The previous prime is 16437986317. The next prime is 16437986419. The reversal of 16437986413 is 31468973461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15175036969 + 1262949444 = 123187^2 + 35538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16437986413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16437986419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8218993206 + 8218993207.

It is an arithmetic number, because the mean of its divisors is an integer number (8218993207).

Almost surely, 2^16437986413 is an apocalyptic number.

It is an amenable number.

16437986413 is a deficient number, since it is larger than the sum of its proper divisors (1).

16437986413 is an equidigital number, since it uses as much as digits as its factorization.

16437986413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 52.

The spelling of 16437986413 in words is "sixteen billion, four hundred thirty-seven million, nine hundred eighty-six thousand, four hundred thirteen".