1868677783245 has 192 divisors, whose sum is σ = 4040619448320. Its totient is φ = 777856794624.

The previous prime is 1868677783241. The next prime is 1868677783307. The reversal of 1868677783245 is 5423877768681.

1868677783245 is a `hidden beast` number, since 186 + 8 + 67 + 77 + 83 + 245 = 666.

It is not a de Polignac number, because 1868677783245 - 2² = 1868677783241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868677783241) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 516635677 + ... + 516639293.

It is an arithmetic number, because the mean of its divisors is an integer number (21044892960).

Almost surely, 2^{1868677783245} is an apocalyptic number.

1868677783245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1868677783245 is an abundant number, since it is smaller than the sum of its proper divisors (2171941665075).

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

1868677783245 is a wasteful number, since it uses less digits than its factorization.

1868677783245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5324 (or 5321 counting only the distinct ones).

The product of its digits is 758661120, while the sum is 72.

The spelling of 1868677783245 in words is "one trillion, eight hundred sixty-eight billion, six hundred seventy-seven million, seven hundred eighty-three thousand, two hundred forty-five".