21093070042800 has 1440 divisors, whose sum is σ = 92280576998400. Its totient is φ = 4550079744000.

The previous prime is 21093070042777. The next prime is 21093070042841. The reversal of 21093070042800 is 824007039012.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 2724846930 + ... + 2724854670.

Almost surely, 2^{21093070042800} is an apocalyptic number.

21093070042800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21093070042800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46140288499200).

21093070042800 is an abundant number, since it is smaller than the sum of its proper divisors (71187506955600).

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

21093070042800 is a wasteful number, since it uses less digits than its factorization.

21093070042800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8072 (or 8048 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 21093070042800 in words is "twenty-one trillion, ninety-three billion, seventy million, forty-two thousand, eight hundred".