1866748704 has 48 divisors (see below), whose sum is σ = 4950757728. Its totient is φ = 615831552.

The previous prime is 1866748691. The next prime is 1866748721. The reversal of 1866748704 is 4078476681.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90922 + ... + 109545.

It is an arithmetic number, because the mean of its divisors is an integer number (103140786).

Almost surely, 2^1866748704 is an apocalyptic number.

It is an amenable number.

1866748704 is an abundant number, since it is smaller than the sum of its proper divisors (3084009024).

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

1866748704 is a wasteful number, since it uses less digits than its factorization.

1866748704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200577 (or 200569 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 1866748704 is about 43205.8873766064. The cubic root of 1866748704 is about 1231.2945376487.

The spelling of 1866748704 in words is "one billion, eight hundred sixty-six million, seven hundred forty-eight thousand, seven hundred four".