4921456089020 has 24 divisors (see below), whose sum is σ = 10691439091200. Its totient is φ = 1900700282432.

The previous prime is 4921456089019. The next prime is 4921456089083. The reversal of 4921456089020 is 209806541294.

It is a self number, because there is not a number n which added to its sum of digits gives 4921456089020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4242633980 + ... + 4242635139.

It is an arithmetic number, because the mean of its divisors is an integer number (445476628800).

Almost surely, 2^{4921456089020} is an apocalyptic number.

It is an amenable number.

4921456089020 is an abundant number, since it is smaller than the sum of its proper divisors (5769983002180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4921456089020 is a wasteful number, since it uses less digits than its factorization.

4921456089020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8485269157 (or 8485269155 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 4921456089020 in words is "four trillion, nine hundred twenty-one billion, four hundred fifty-six million, eighty-nine thousand, twenty".