2719996779 has 8 divisors (see below), whose sum is σ = 3627784192. Its totient is φ = 1812770280.

The previous prime is 2719996733. The next prime is 2719996793. The reversal of 2719996779 is 9776999172.

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

It is not a de Polignac number, because 2719996779 - 2⁸ = 2719996523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2719996579) 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, 128779 + ... + 148404.

It is an arithmetic number, because the mean of its divisors is an integer number (453473024).

Almost surely, 2^2719996779 is an apocalyptic number.

2719996779 is a deficient number, since it is larger than the sum of its proper divisors (907787413).

2719996779 is a wasteful number, since it uses less digits than its factorization.

2719996779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280457.

The product of its digits is 27005076, while the sum is 66.

The square root of 2719996779 is about 52153.5883616842. The cubic root of 2719996779 is about 1395.9058583749.

The spelling of 2719996779 in words is "two billion, seven hundred nineteen million, nine hundred ninety-six thousand, seven hundred seventy-nine".