18852154969 has 2 divisors, whose sum is σ = 18852154970. Its totient is φ = 18852154968.

The previous prime is 18852154963. The next prime is 18852155033. The reversal of 18852154969 is 96945125881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16229486025 + 2622668944 = 127395^2 + 51212^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18852154969 is a prime.

It is a super-2 number, since 2×18852154969² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18852154963) 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, 9426077484 + 9426077485.

It is an arithmetic number, because the mean of its divisors is an integer number (9426077485).

Almost surely, 2^18852154969 is an apocalyptic number.

It is an amenable number.

18852154969 is a deficient number, since it is larger than the sum of its proper divisors (1).

18852154969 is an equidigital number, since it uses as much as digits as its factorization.

18852154969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6220800, while the sum is 58.

The spelling of 18852154969 in words is "eighteen billion, eight hundred fifty-two million, one hundred fifty-four thousand, nine hundred sixty-nine".