426391732906 has 8 divisors (see below), whose sum is σ = 642405166560. Its totient is φ = 212256677388.

The previous prime is 426391732889. The next prime is 426391732909. The reversal of 426391732906 is 609237193624.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (426391732909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469593966 + ... + 469594873.

It is an arithmetic number, because the mean of its divisors is an integer number (80300645820).

Almost surely, 2^426391732906 is an apocalyptic number.

426391732906 is a deficient number, since it is larger than the sum of its proper divisors (216013433654).

426391732906 is a wasteful number, since it uses less digits than its factorization.

426391732906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939189068.

The product of its (nonzero) digits is 2939328, while the sum is 52.

The spelling of 426391732906 in words is "four hundred twenty-six billion, three hundred ninety-one million, seven hundred thirty-two thousand, nine hundred six".