2643407706 has 32 divisors (see below), whose sum is σ = 5312042496. Its totient is φ = 876942000.

The previous prime is 2643407609. The next prime is 2643407717. The reversal of 2643407706 is 6077043462.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2046921 + ... + 2048211.

It is an arithmetic number, because the mean of its divisors is an integer number (166001328).

Almost surely, 2^2643407706 is an apocalyptic number.

2643407706 is an abundant number, since it is smaller than the sum of its proper divisors (2668634790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2643407706 is a wasteful number, since it uses less digits than its factorization.

2643407706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658.

The product of its (nonzero) digits is 169344, while the sum is 39.

The square root of 2643407706 is about 51414.0808145006. The cubic root of 2643407706 is about 1382.6790542286.

The spelling of 2643407706 in words is "two billion, six hundred forty-three million, four hundred seven thousand, seven hundred six".