421313444678 has 32 divisors (see below), whose sum is σ = 742065408000. Its totient is φ = 175672560384.

The previous prime is 421313444663. The next prime is 421313444683. The reversal of 421313444678 is 876444313124.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 2549078 + ... + 2709321.

It is an arithmetic number, because the mean of its divisors is an integer number (23189544000).

Almost surely, 2^421313444678 is an apocalyptic number.

421313444678 is a deficient number, since it is larger than the sum of its proper divisors (320751963322).

421313444678 is a wasteful number, since it uses less digits than its factorization.

421313444678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5258564.

The product of its digits is 1548288, while the sum is 47.

The spelling of 421313444678 in words is "four hundred twenty-one billion, three hundred thirteen million, four hundred forty-four thousand, six hundred seventy-eight".