1871385483 has 16 divisors (see below), whose sum is σ = 2882134656. Its totient is φ = 1067456640.

The previous prime is 1871385421. The next prime is 1871385491. The reversal of 1871385483 is 3845831781.

It is a happy number.

It is not a de Polignac number, because 1871385483 - 2⁶ = 1871385419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1871385493) 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, 1667341 + ... + 1668462.

It is an arithmetic number, because the mean of its divisors is an integer number (180133416).

Almost surely, 2^1871385483 is an apocalyptic number.

1871385483 is a deficient number, since it is larger than the sum of its proper divisors (1010749173).

1871385483 is a wasteful number, since it uses less digits than its factorization.

1871385483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335834.

The product of its digits is 645120, while the sum is 48.

The square root of 1871385483 is about 43259.5132080794. The cubic root of 1871385483 is about 1232.3131571935.

It can be divided in two parts, 18713 and 85483, that added together give a triangular number (104196 = T₄₅₆).

The spelling of 1871385483 in words is "one billion, eight hundred seventy-one million, three hundred eighty-five thousand, four hundred eighty-three".