1868679500 has 24 divisors (see below), whose sum is σ = 4081197120. Its totient is φ = 747471600.

The previous prime is 1868679479. The next prime is 1868679517. The reversal of 1868679500 is 59768681.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

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, 1868180 + ... + 1869179.

It is an arithmetic number, because the mean of its divisors is an integer number (170049880).

Almost surely, 2^1868679500 is an apocalyptic number.

1868679500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1868679500 is an abundant number, since it is smaller than the sum of its proper divisors (2212517620).

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

1868679500 is a wasteful number, since it uses less digits than its factorization.

1868679500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737378 (or 3737366 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 1868679500 is about 43228.2257327316. The cubic root of 1868679500 is about 1231.7189046038.

The spelling of 1868679500 in words is "one billion, eight hundred sixty-eight million, six hundred seventy-nine thousand, five hundred".