1868486748 has 12 divisors (see below), whose sum is σ = 4359802440. Its totient is φ = 622828912.

The previous prime is 1868486747. The next prime is 1868486773. The reversal of 1868486748 is 8476848681.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1868486691 and 1868486700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868486747) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 77853603 + ... + 77853626.

It is an arithmetic number, because the mean of its divisors is an integer number (363316870).

Almost surely, 2^1868486748 is an apocalyptic number.

It is an amenable number.

1868486748 is an abundant number, since it is smaller than the sum of its proper divisors (2491315692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1868486748 is a wasteful number, since it uses less digits than its factorization.

1868486748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155707236 (or 155707234 counting only the distinct ones).

The product of its digits is 16515072, while the sum is 60.

The square root of 1868486748 is about 43225.9962059870. The cubic root of 1868486748 is about 1231.6765530492.

The spelling of 1868486748 in words is "one billion, eight hundred sixty-eight million, four hundred eighty-six thousand, seven hundred forty-eight".