1868349499 has 16 divisors (see below), whose sum is σ = 1937001600. Its totient is φ = 1801068544.

The previous prime is 1868349493. The next prime is 1868349529. The reversal of 1868349499 is 9949438681.

It is a cyclic number.

It is not a de Polignac number, because 1868349499 - 2¹¹ = 1868347451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1868349493) 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 in 15 ways as a sum of consecutive naturals, for example, 1325307 + ... + 1326715.

It is an arithmetic number, because the mean of its divisors is an integer number (121062600).

Almost surely, 2^1868349499 is an apocalyptic number.

1868349499 is a deficient number, since it is larger than the sum of its proper divisors (68652101).

1868349499 is a wasteful number, since it uses less digits than its factorization.

1868349499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862.

The product of its digits is 13436928, while the sum is 61.

The square root of 1868349499 is about 43224.4086020850. The cubic root of 1868349499 is about 1231.6463948629.

The spelling of 1868349499 in words is "one billion, eight hundred sixty-eight million, three hundred forty-nine thousand, four hundred ninety-nine".