421317442658 has 16 divisors (see below), whose sum is σ = 722774774400. Its totient is φ = 180435542976.

The previous prime is 421317442649. The next prime is 421317442669. The reversal of 421317442658 is 856244713124.

It is a Curzon number.

It is an unprimeable number.

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, 10735991 + ... + 10775162.

It is an arithmetic number, because the mean of its divisors is an integer number (45173423400).

Almost surely, 2^421317442658 is an apocalyptic number.

421317442658 is a deficient number, since it is larger than the sum of its proper divisors (301457331742).

421317442658 is a wasteful number, since it uses less digits than its factorization.

421317442658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21512561.

The product of its digits is 1290240, while the sum is 47.

The spelling of 421317442658 in words is "four hundred twenty-one billion, three hundred seventeen million, four hundred forty-two thousand, six hundred fifty-eight".