2796621783378 has 16 divisors (see below), whose sum is σ = 5624490739680. Its totient is φ = 926999398976.

The previous prime is 2796621783377. The next prime is 2796621783407. The reversal of 2796621783378 is 8733871266972.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2796621783377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1301964375 + ... + 1301966522.

It is an arithmetic number, because the mean of its divisors is an integer number (351530671230).

Almost surely, 2^{2796621783378} is an apocalyptic number.

2796621783378 is an abundant number, since it is smaller than the sum of its proper divisors (2827868956302).

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

2796621783378 is a wasteful number, since it uses less digits than its factorization.

2796621783378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603931081.

The product of its digits is 256048128, while the sum is 69.

The spelling of 2796621783378 in words is "two trillion, seven hundred ninety-six billion, six hundred twenty-one million, seven hundred eighty-three thousand, three hundred seventy-eight".