16987120837 has 2 divisors, whose sum is σ = 16987120838. Its totient is φ = 16987120836.

The previous prime is 16987120793. The next prime is 16987120847. The reversal of 16987120837 is 73802178961.

16987120837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13998202596 + 2988918241 = 118314^2 + 54671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16987120837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16987120847) 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, 8493560418 + 8493560419.

It is an arithmetic number, because the mean of its divisors is an integer number (8493560419).

Almost surely, 2^16987120837 is an apocalyptic number.

It is an amenable number.

16987120837 is a deficient number, since it is larger than the sum of its proper divisors (1).

16987120837 is an equidigital number, since it uses as much as digits as its factorization.

16987120837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The spelling of 16987120837 in words is "sixteen billion, nine hundred eighty-seven million, one hundred twenty thousand, eight hundred thirty-seven".