2779139067 has 4 divisors (see below), whose sum is σ = 3705518760. Its totient is φ = 1852759376.

The previous prime is 2779139047. The next prime is 2779139113. The reversal of 2779139067 is 7609319772.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2779139067 - 2⁶ = 2779139003 is a prime.

It is a super-2 number, since 2×2779139067² = 15447227907451260978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2779139047) 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 3 ways as a sum of consecutive naturals, for example, 463189842 + ... + 463189847.

It is an arithmetic number, because the mean of its divisors is an integer number (926379690).

Almost surely, 2^2779139067 is an apocalyptic number.

2779139067 is a deficient number, since it is larger than the sum of its proper divisors (926379693).

2779139067 is an equidigital number, since it uses as much as digits as its factorization.

2779139067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926379692.

The product of its (nonzero) digits is 1000188, while the sum is 51.

The square root of 2779139067 is about 52717.5404111383. The cubic root of 2779139067 is about 1405.9507024945.

The spelling of 2779139067 in words is "two billion, seven hundred seventy-nine million, one hundred thirty-nine thousand, sixty-seven".