6406942722 has 16 divisors (see below), whose sum is σ = 12855091392. Its totient is φ = 2128779920.

The previous prime is 6406942699. The next prime is 6406942727. The reversal of 6406942722 is 2272496046.

It is not an unprimeable number, because it can be changed into a prime (6406942727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1714893 + ... + 1718624.

It is an arithmetic number, because the mean of its divisors is an integer number (803443212).

Almost surely, 2^6406942722 is an apocalyptic number.

6406942722 is an abundant number, since it is smaller than the sum of its proper divisors (6448148670).

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

6406942722 is a wasteful number, since it uses less digits than its factorization.

6406942722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433833.

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 6406942722 is about 80043.3802509614. The cubic root of 6406942722 is about 1857.3066504299.

The spelling of 6406942722 in words is "six billion, four hundred six million, nine hundred forty-two thousand, seven hundred twenty-two".