1868943954 has 8 divisors (see below), whose sum is σ = 3737887920. Its totient is φ = 622981316.

The previous prime is 1868943941. The next prime is 1868943991. The reversal of 1868943954 is 4593498681.

It is a sphenic number, since it is the product of 3 distinct primes.

1868943954 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1868943894 and 1868943903.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 155745324 + ... + 155745335.

It is an arithmetic number, because the mean of its divisors is an integer number (467235990).

Almost surely, 2^1868943954 is an apocalyptic number.

1868943954 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1868943954 is a wasteful number, since it uses less digits than its factorization.

1868943954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311490664.

The product of its digits is 7464960, while the sum is 57.

The square root of 1868943954 is about 43231.2844361580. The cubic root of 1868943954 is about 1231.7770058150. Note that the first 3 decimals are identical.

The spelling of 1868943954 in words is "one billion, eight hundred sixty-eight million, nine hundred forty-three thousand, nine hundred fifty-four".