2788320279 has 8 divisors (see below), whose sum is σ = 3718618992. Its totient is φ = 1858450880.

The previous prime is 2788320257. The next prime is 2788320299. The reversal of 2788320279 is 9720238872.

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

It is a cyclic number.

It is not a de Polignac number, because 2788320279 - 2⁹ = 2788319767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788320209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91854 + ... + 118379.

It is an arithmetic number, because the mean of its divisors is an integer number (464827374).

Almost surely, 2^2788320279 is an apocalyptic number.

2788320279 is a deficient number, since it is larger than the sum of its proper divisors (930298713).

2788320279 is a wasteful number, since it uses less digits than its factorization.

2788320279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214657.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 2788320279 is about 52804.5479007254. The cubic root of 2788320279 is about 1407.4972417228.

The spelling of 2788320279 in words is "two billion, seven hundred eighty-eight million, three hundred twenty thousand, two hundred seventy-nine".