1868642054 has 8 divisors (see below), whose sum is σ = 2814691680. Its totient is φ = 930411496.

The previous prime is 1868642053. The next prime is 1868642093. The reversal of 1868642054 is 4502468681.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1868641996 and 1868642014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868642053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1954169 + ... + 1955124.

It is an arithmetic number, because the mean of its divisors is an integer number (351836460).

Almost surely, 2^1868642054 is an apocalyptic number.

1868642054 is a deficient number, since it is larger than the sum of its proper divisors (946049626).

1868642054 is a wasteful number, since it uses less digits than its factorization.

1868642054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909534.

The product of its (nonzero) digits is 368640, while the sum is 44.

The square root of 1868642054 is about 43227.7926107730. The cubic root of 1868642054 is about 1231.7106771801.

The spelling of 1868642054 in words is "one billion, eight hundred sixty-eight million, six hundred forty-two thousand, fifty-four".