2788979133 has 4 divisors (see below), whose sum is σ = 3718638848. Its totient is φ = 1859319420.

The previous prime is 2788979111. The next prime is 2788979153. The reversal of 2788979133 is 3319798872.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2788979133 - 2⁶ = 2788979069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788979153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464829853 + ... + 464829858.

It is an arithmetic number, because the mean of its divisors is an integer number (929659712).

Almost surely, 2^2788979133 is an apocalyptic number.

It is an amenable number.

2788979133 is a deficient number, since it is larger than the sum of its proper divisors (929659715).

2788979133 is an equidigital number, since it uses as much as digits as its factorization.

2788979133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929659714.

The product of its digits is 4572288, while the sum is 57.

The square root of 2788979133 is about 52810.7861426054. The cubic root of 2788979133 is about 1407.6080924697.

The spelling of 2788979133 in words is "two billion, seven hundred eighty-eight million, nine hundred seventy-nine thousand, one hundred thirty-three".