6431407426 has 4 divisors (see below), whose sum is σ = 9647111142. Its totient is φ = 3215703712.

The previous prime is 6431407421. The next prime is 6431407427. The reversal of 6431407426 is 6247041346.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5783450401 + 647957025 = 76049^2 + 25455^2 .

It is not an unprimeable number, because it can be changed into a prime (6431407421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1607851855 + ... + 1607851858.

Almost surely, 2^6431407426 is an apocalyptic number.

6431407426 is a deficient number, since it is larger than the sum of its proper divisors (3215703716).

6431407426 is a wasteful number, since it uses less digits than its factorization.

6431407426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215703715.

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 6431407426 is about 80196.0561748519. The cubic root of 6431407426 is about 1859.6676696499.

The spelling of 6431407426 in words is "six billion, four hundred thirty-one million, four hundred seven thousand, four hundred twenty-six".