426998627999 has 4 divisors (see below), whose sum is σ = 427847532336. Its totient is φ = 426149723664.

The previous prime is 426998627947. The next prime is 426998628061. The reversal of 426998627999 is 999726899624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 426998627999 - 2²⁰ = 426997579423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426998627599) 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, 424451414 + ... + 424452419.

It is an arithmetic number, because the mean of its divisors is an integer number (106961883084).

Almost surely, 2^426998627999 is an apocalyptic number.

426998627999 is a deficient number, since it is larger than the sum of its proper divisors (848904337).

426998627999 is an equidigital number, since it uses as much as digits as its factorization.

426998627999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848904336.

The product of its digits is 1904684544, while the sum is 80.

The spelling of 426998627999 in words is "four hundred twenty-six billion, nine hundred ninety-eight million, six hundred twenty-seven thousand, nine hundred ninety-nine".