2788763378 has 8 divisors (see below), whose sum is σ = 4245580272. Its totient is φ = 1373569956.

The previous prime is 2788763359. The next prime is 2788763389. The reversal of 2788763378 is 8733678872.

It is a happy number.

2788763378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10405700 + ... + 10405967.

It is an arithmetic number, because the mean of its divisors is an integer number (530697534).

Almost surely, 2^2788763378 is an apocalyptic number.

2788763378 is a deficient number, since it is larger than the sum of its proper divisors (1456816894).

2788763378 is a wasteful number, since it uses less digits than its factorization.

2788763378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20811736.

The product of its digits is 18966528, while the sum is 59.

The square root of 2788763378 is about 52808.7433859205. The cubic root of 2788763378 is about 1407.5717940846.

The spelling of 2788763378 in words is "two billion, seven hundred eighty-eight million, seven hundred sixty-three thousand, three hundred seventy-eight".