2002076779 has 4 divisors (see below), whose sum is σ = 2006256960. Its totient is φ = 1997896600.

The previous prime is 2002076777. The next prime is 2002076807. The reversal of 2002076779 is 9776702002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9776702002 = 2 ⋅4888351001.

It is a cyclic number.

It is not a de Polignac number, because 2002076779 - 2¹ = 2002076777 is a prime.

It is a super-2 number, since 2×2002076779² = 8016622858022029682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002076777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089372 + ... + 2090329.

It is an arithmetic number, because the mean of its divisors is an integer number (501564240).

Almost surely, 2^2002076779 is an apocalyptic number.

2002076779 is a deficient number, since it is larger than the sum of its proper divisors (4180181).

2002076779 is an equidigital number, since it uses as much as digits as its factorization.

2002076779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180180.

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 2002076779 is about 44744.5726205984. The cubic root of 2002076779 is about 1260.3569952990.

The spelling of 2002076779 in words is "two billion, two million, seventy-six thousand, seven hundred seventy-nine".