2778303983 has 8 divisors (see below), whose sum is σ = 3419451168. Its totient is φ = 2198218464.

The previous prime is 2778303971. The next prime is 2778304049. The reversal of 2778303983 is 3893038772.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2778303983 - 2⁶ = 2778303919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2778305983) 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, 15265316 + ... + 15265497.

It is an arithmetic number, because the mean of its divisors is an integer number (427431396).

Almost surely, 2^2778303983 is an apocalyptic number.

2778303983 is a deficient number, since it is larger than the sum of its proper divisors (641147185).

2778303983 is a wasteful number, since it uses less digits than its factorization.

2778303983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30530833.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The square root of 2778303983 is about 52709.6194541376. The cubic root of 2778303983 is about 1405.8098669665.

The spelling of 2778303983 in words is "two billion, seven hundred seventy-eight million, three hundred three thousand, nine hundred eighty-three".