16264926989 has 2 divisors, whose sum is σ = 16264926990. Its totient is φ = 16264926988.

The previous prime is 16264926961. The next prime is 16264927061. The reversal of 16264926989 is 98962946261.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15131460100 + 1133466889 = 123010^2 + 33667^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16264926989 is a prime.

It is a super-2 number, since 2×16264926989² (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 (16264926289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8132463494 + 8132463495.

It is an arithmetic number, because the mean of its divisors is an integer number (8132463495).

Almost surely, 2^16264926989 is an apocalyptic number.

It is an amenable number.

16264926989 is a deficient number, since it is larger than the sum of its proper divisors (1).

16264926989 is an equidigital number, since it uses as much as digits as its factorization.

16264926989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20155392, while the sum is 62.

The spelling of 16264926989 in words is "sixteen billion, two hundred sixty-four million, nine hundred twenty-six thousand, nine hundred eighty-nine".