2783965289968 has 20 divisors (see below), whose sum is σ = 5394493223640. Its totient is φ = 1391838006464.

The previous prime is 2783965289939. The next prime is 2783965289977. The reversal of 2783965289968 is 8699825693872.

It is a super-2 number, since 2×2783965289968² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2783965289891 and 2783965289900.

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 3 ways as a sum of consecutive naturals, for example, 8881030 + ... + 9189157.

It is an arithmetic number, because the mean of its divisors is an integer number (269724661182).

Almost surely, 2^{2783965289968} is an apocalyptic number.

It is an amenable number.

2783965289968 is a deficient number, since it is larger than the sum of its proper divisors (2610527933672).

2783965289968 is a wasteful number, since it uses less digits than its factorization.

2783965289968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18079824 (or 18079818 counting only the distinct ones).

The product of its digits is 5643509760, while the sum is 82.

The spelling of 2783965289968 in words is "two trillion, seven hundred eighty-three billion, nine hundred sixty-five million, two hundred eighty-nine thousand, nine hundred sixty-eight".