2646888011 has 4 divisors (see below), whose sum is σ = 2678778312. Its totient is φ = 2614997712.

The previous prime is 2646887989. The next prime is 2646888017. The reversal of 2646888011 is 1108886462.

2646888011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1108886462 = 2 ⋅554443231.

It is a cyclic number.

It is not a de Polignac number, because 2646888011 - 2¹⁸ = 2646625867 is a prime.

It is a super-2 number, since 2×2646888011² = 14012032285551072242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2646888017) 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, 15945026 + ... + 15945191.

It is an arithmetic number, because the mean of its divisors is an integer number (669694578).

Almost surely, 2^2646888011 is an apocalyptic number.

2646888011 is a deficient number, since it is larger than the sum of its proper divisors (31890301).

2646888011 is an equidigital number, since it uses as much as digits as its factorization.

2646888011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31890300.

The product of its (nonzero) digits is 147456, while the sum is 44.

The square root of 2646888011 is about 51447.9155165688. The cubic root of 2646888011 is about 1383.2855988883.

The spelling of 2646888011 in words is "two billion, six hundred forty-six million, eight hundred eighty-eight thousand, eleven".