6406942395 has 16 divisors (see below), whose sum is σ = 11715552000. Its totient is φ = 2928887904.

The previous prime is 6406942393. The next prime is 6406942403. The reversal of 6406942395 is 5932496046.

It is not a de Polignac number, because 6406942395 - 2¹ = 6406942393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6406942393) 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, 30509145 + ... + 30509354.

It is an arithmetic number, because the mean of its divisors is an integer number (732222000).

Almost surely, 2^6406942395 is an apocalyptic number.

6406942395 is a deficient number, since it is larger than the sum of its proper divisors (5308609605).

6406942395 is a wasteful number, since it uses less digits than its factorization.

6406942395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61018514.

The product of its (nonzero) digits is 1399680, while the sum is 48.

The square root of 6406942395 is about 80043.3782083190. The cubic root of 6406942395 is about 1857.3066188319.

The spelling of 6406942395 in words is "six billion, four hundred six million, nine hundred forty-two thousand, three hundred ninety-five".