2789785492494 has 96 divisors (see below), whose sum is σ = 7625227994496. Its totient is φ = 668879628480.

The previous prime is 2789785492471. The next prime is 2789785492511. The reversal of 2789785492494 is 4942945879872.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a Curzon number.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 33136512 + ... + 33220595.

It is an arithmetic number, because the mean of its divisors is an integer number (79429458276).

Almost surely, 2^{2789785492494} is an apocalyptic number.

2789785492494 is an abundant number, since it is smaller than the sum of its proper divisors (4835442502002).

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

2789785492494 is a wasteful number, since it uses less digits than its factorization.

2789785492494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66357150 (or 66357143 counting only the distinct ones).

The product of its digits is 2926264320, while the sum is 78.

The spelling of 2789785492494 in words is "two trillion, seven hundred eighty-nine billion, seven hundred eighty-five million, four hundred ninety-two thousand, four hundred ninety-four".