426565457577242 has 8 divisors (see below), whose sum is σ = 644518611084276. Its totient is φ = 211725920549152.

The previous prime is 426565457577241. The next prime is 426565457577251. The reversal of 426565457577242 is 242775754565624.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 426514562668441 + 50894908801 = 20652229^2 + 225599^2 .

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 (426565457577241) 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, 778404119393 + ... + 778404119940.

Almost surely, 2^{426565457577242} is an apocalyptic number.

426565457577242 is a deficient number, since it is larger than the sum of its proper divisors (217953153507034).

426565457577242 is a wasteful number, since it uses less digits than its factorization.

426565457577242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556808239472.

The product of its digits is 3951360000, while the sum is 71.

The spelling of 426565457577242 in words is "four hundred twenty-six trillion, five hundred sixty-five billion, four hundred fifty-seven million, five hundred seventy-seven thousand, two hundred forty-two".