426666602544242 has 8 divisors (see below), whose sum is σ = 640000010929500. Its totient is φ = 213333265567744.

The previous prime is 426666602544173. The next prime is 426666602544263. The reversal of 426666602544242 is 242445206666624.

It can be written as a sum of positive squares in 2 ways, for example, as 356793905442121 + 69872697102121 = 18888989^2 + 8358989^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1116134 + ... + 29233182.

Almost surely, 2^{426666602544242} is an apocalyptic number.

426666602544242 is a deficient number, since it is larger than the sum of its proper divisors (213333408385258).

426666602544242 is a wasteful number, since it uses less digits than its factorization.

426666602544242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35704380.

The product of its (nonzero) digits is 159252480, while the sum is 59.

The spelling of 426666602544242 in words is "four hundred twenty-six trillion, six hundred sixty-six billion, six hundred two million, five hundred forty-four thousand, two hundred forty-two".