1868749255 has 16 divisors (see below), whose sum is σ = 2296635264. Its totient is φ = 1458969120.

The previous prime is 1868749249. The next prime is 1868749261. The reversal of 1868749255 is 5529478681.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1868749249) and next prime (1868749261).

It is not a de Polignac number, because 1868749255 - 2¹¹ = 1868747207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1868749196 and 1868749205.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 303760 + ... + 309850.

It is an arithmetic number, because the mean of its divisors is an integer number (143539704).

Almost surely, 2^1868749255 is an apocalyptic number.

1868749255 is a deficient number, since it is larger than the sum of its proper divisors (427886009).

1868749255 is a wasteful number, since it uses less digits than its factorization.

1868749255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7566.

The product of its digits is 4838400, while the sum is 55.

The square root of 1868749255 is about 43229.0325475831. The cubic root of 1868749255 is about 1231.7342304856.

The spelling of 1868749255 in words is "one billion, eight hundred sixty-eight million, seven hundred forty-nine thousand, two hundred fifty-five".