100421456444 has 24 divisors (see below), whose sum is σ = 179965680048. Its totient is φ = 49004524800.

The previous prime is 100421456431. The next prime is 100421456453. The reversal of 100421456444 is 444654124001.

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 7 ways as a sum of consecutive naturals, for example, 8957 + ... + 448244.

It is an arithmetic number, because the mean of its divisors is an integer number (7498570002).

Almost surely, 2^100421456444 is an apocalyptic number.

It is an amenable number.

100421456444 is a deficient number, since it is larger than the sum of its proper divisors (79544223604).

100421456444 is a wasteful number, since it uses less digits than its factorization.

100421456444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458525 (or 458523 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The spelling of 100421456444 in words is "one hundred billion, four hundred twenty-one million, four hundred fifty-six thousand, four hundred forty-four".