421256068833 has 8 divisors (see below), whose sum is σ = 562564895296. Its totient is φ = 280392310800.

The previous prime is 421256068829. The next prime is 421256068837. The reversal of 421256068833 is 338860652124.

It is an interprime number because it is at equal distance from previous prime (421256068829) and next prime (421256068837).

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

It is not a de Polignac number, because 421256068833 - 2² = 421256068829 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421256068837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111264898 + ... + 111268683.

It is an arithmetic number, because the mean of its divisors is an integer number (70320611912).

Almost surely, 2^421256068833 is an apocalyptic number.

It is an amenable number.

421256068833 is a deficient number, since it is larger than the sum of its proper divisors (141308826463).

421256068833 is a wasteful number, since it uses less digits than its factorization.

421256068833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222534215.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 421256068833 in words is "four hundred twenty-one billion, two hundred fifty-six million, sixty-eight thousand, eight hundred thirty-three".