426660026426 has 8 divisors (see below), whose sum is σ = 640631958420. Its totient is φ = 213116040288.

The previous prime is 426660026423. The next prime is 426660026449. The reversal of 426660026426 is 624620066624.

It can be written as a sum of positive squares in 2 ways, for example, as 305659708225 + 121000318201 = 552865^2 + 347851^2 .

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 (426660026423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106983971 + ... + 106987958.

Almost surely, 2^426660026426 is an apocalyptic number.

426660026426 is a deficient number, since it is larger than the sum of its proper divisors (213971931994).

426660026426 is a wasteful number, since it uses less digits than its factorization.

426660026426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213972928.

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 426660026426 in words is "four hundred twenty-six billion, six hundred sixty million, twenty-six thousand, four hundred twenty-six".