2646345394 has 32 divisors (see below), whose sum is σ = 4962041856. Its totient is φ = 1028328720.

The previous prime is 2646345391. The next prime is 2646345509. The reversal of 2646345394 is 4935436462.

2646345394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2646345391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36549 + ... + 81415.

It is an arithmetic number, because the mean of its divisors is an integer number (155063808).

Almost surely, 2^2646345394 is an apocalyptic number.

2646345394 is a deficient number, since it is larger than the sum of its proper divisors (2315696462).

2646345394 is a wasteful number, since it uses less digits than its factorization.

2646345394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45270.

The product of its digits is 1866240, while the sum is 46.

The square root of 2646345394 is about 51442.6417867512. The cubic root of 2646345394 is about 1383.1910670487.

The spelling of 2646345394 in words is "two billion, six hundred forty-six million, three hundred forty-five thousand, three hundred ninety-four".