21376475959200 has 144 divisors (see below), whose sum is σ = 69586287817536. Its totient is φ = 5699913625600.

The previous prime is 21376475959183. The next prime is 21376475959207. The reversal of 21376475959200 is 295957467312.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (21376475959207) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 28601464 + ... + 29339336.

It is an arithmetic number, because the mean of its divisors is an integer number (483238109844).

Almost surely, 2^{21376475959200} is an apocalyptic number.

21376475959200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21376475959200 is an abundant number, since it is smaller than the sum of its proper divisors (48209811858336).

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

21376475959200 is a wasteful number, since it uses less digits than its factorization.

21376475959200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749967 (or 749954 counting only the distinct ones).

The product of its (nonzero) digits is 28576800, while the sum is 60.

The spelling of 21376475959200 in words is "twenty-one trillion, three hundred seventy-six billion, four hundred seventy-five million, nine hundred fifty-nine thousand, two hundred".