21074801000 has 64 divisors (see below), whose sum is σ = 53798247360. Its totient is φ = 7663560000.

The previous prime is 21074800997. The next prime is 21074801051. The reversal of 21074801000 is 10847012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 946946 + ... + 968945.

It is an arithmetic number, because the mean of its divisors is an integer number (840597615).

Almost surely, 2^21074801000 is an apocalyptic number.

21074801000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21074801000 is an abundant number, since it is smaller than the sum of its proper divisors (32723446360).

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

21074801000 is a wasteful number, since it uses less digits than its factorization.

21074801000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915923 (or 1915909 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The spelling of 21074801000 in words is "twenty-one billion, seventy-four million, eight hundred one thousand".