1868668335020 has 24 divisors (see below), whose sum is σ = 4015464051984. Its totient is φ = 730084372416.

The previous prime is 1868668335011. The next prime is 1868668335043. The reversal of 1868668335020 is 205338668681.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

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, 1086434219 + ... + 1086435938.

It is an arithmetic number, because the mean of its divisors is an integer number (167311002166).

Almost surely, 2^{1868668335020} is an apocalyptic number.

1868668335020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1868668335020 is an abundant number, since it is smaller than the sum of its proper divisors (2146795716964).

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

1868668335020 is a wasteful number, since it uses less digits than its factorization.

1868668335020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172870209 (or 2172870207 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 56.

The spelling of 1868668335020 in words is "one trillion, eight hundred sixty-eight billion, six hundred sixty-eight million, three hundred thirty-five thousand, twenty".