21420976855300 has 72 divisors (see below), whose sum is σ = 50810109319872. Its totient is φ = 7773959952000.

The previous prime is 21420976855283. The next prime is 21420976855357. The reversal of 21420976855300 is 355867902412.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18804171 + ... + 19910770.

It is an arithmetic number, because the mean of its divisors is an integer number (705695962776).

It is a 2-persistent number, because it is pandigital, and so is 2⋅21420976855300 = 42841953710600, but 3⋅21420976855300 = 64262930565900 is not.

Almost surely, 2^{21420976855300} is an apocalyptic number.

21420976855300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21420976855300 is an abundant number, since it is smaller than the sum of its proper divisors (29389132464572).

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

21420976855300 is a wasteful number, since it uses less digits than its factorization.

21420976855300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38715469 (or 38715462 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 21420976855300 in words is "twenty-one trillion, four hundred twenty billion, nine hundred seventy-six million, eight hundred fifty-five thousand, three hundred".