2779139342 has 8 divisors (see below), whose sum is σ = 4764238896. Its totient is φ = 1191059712.

The previous prime is 2779139333. The next prime is 2779139353. The reversal of 2779139342 is 2439319772.

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

It is a congruent number.

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, 99254963 + ... + 99254990.

It is an arithmetic number, because the mean of its divisors is an integer number (595529862).

Almost surely, 2^2779139342 is an apocalyptic number.

2779139342 is a deficient number, since it is larger than the sum of its proper divisors (1985099554).

2779139342 is a wasteful number, since it uses less digits than its factorization.

2779139342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198509962.

The product of its digits is 571536, while the sum is 47.

The square root of 2779139342 is about 52717.5430193783. The cubic root of 2779139342 is about 1405.9507488682.

The spelling of 2779139342 in words is "two billion, seven hundred seventy-nine million, one hundred thirty-nine thousand, three hundred forty-two".