1866046868 has 24 divisors (see below), whose sum is σ = 3734778432. Its totient is φ = 799159104.

The previous prime is 1866046823. The next prime is 1866046873. The reversal of 1866046868 is 8686406681.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16871 + ... + 63377.

It is an arithmetic number, because the mean of its divisors is an integer number (155615768).

Almost surely, 2^1866046868 is an apocalyptic number.

It is an amenable number.

1866046868 is an abundant number, since it is smaller than the sum of its proper divisors (1868731564).

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

1866046868 is a wasteful number, since it uses less digits than its factorization.

1866046868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47951 (or 47949 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The square root of 1866046868 is about 43197.7646180911. The cubic root of 1866046868 is about 1231.1402095821.

The spelling of 1866046868 in words is "one billion, eight hundred sixty-six million, forty-six thousand, eight hundred sixty-eight".