16242508813 has 2 divisors, whose sum is σ = 16242508814. Its totient is φ = 16242508812.

The previous prime is 16242508787. The next prime is 16242508817. The reversal of 16242508813 is 31880524261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16240443844 + 2064969 = 127438^2 + 1437^2 .

It is an emirp because it is prime and its reverse (31880524261) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16242508813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16242508817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8121254406 + 8121254407.

It is an arithmetic number, because the mean of its divisors is an integer number (8121254407).

Almost surely, 2^16242508813 is an apocalyptic number.

It is an amenable number.

16242508813 is a deficient number, since it is larger than the sum of its proper divisors (1).

16242508813 is an equidigital number, since it uses as much as digits as its factorization.

16242508813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 16242508813 in words is "sixteen billion, two hundred forty-two million, five hundred eight thousand, eight hundred thirteen".