1868484269 has 2 divisors, whose sum is σ = 1868484270. Its totient is φ = 1868484268.

The previous prime is 1868484257. The next prime is 1868484283. The reversal of 1868484269 is 9624848681.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1865376100 + 3108169 = 43190^2 + 1763^2 .

It is a cyclic number.

It is not a de Polignac number, because 1868484269 - 2⁴ = 1868484253 is a prime.

It is a super-2 number, since 2×1868484269² = 6982466927000928722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1868484469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 934242134 + 934242135.

It is an arithmetic number, because the mean of its divisors is an integer number (934242135).

Almost surely, 2^1868484269 is an apocalyptic number.

It is an amenable number.

1868484269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1868484269 is an equidigital number, since it uses as much as digits as its factorization.

1868484269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5308416, while the sum is 56.

The square root of 1868484269 is about 43225.9675311033. The cubic root of 1868484269 is about 1231.6760083432.

The spelling of 1868484269 in words is "one billion, eight hundred sixty-eight million, four hundred eighty-four thousand, two hundred sixty-nine".