426666104265242 has 16 divisors (see below), whose sum is σ = 640111046712192. Its totient is φ = 213295756443840.

The previous prime is 426666104265239. The next prime is 426666104265277. The reversal of 426666104265242 is 242562401666624.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924247442 + ... + 924708962.

It is an arithmetic number, because the mean of its divisors is an integer number (40006940419512).

Almost surely, 2^{426666104265242} is an apocalyptic number.

426666104265242 is a deficient number, since it is larger than the sum of its proper divisors (213444942446950).

426666104265242 is a wasteful number, since it uses less digits than its factorization.

426666104265242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541333.

The product of its (nonzero) digits is 39813120, while the sum is 56.

The spelling of 426666104265242 in words is "four hundred twenty-six trillion, six hundred sixty-six billion, one hundred four million, two hundred sixty-five thousand, two hundred forty-two".