21633288027740 has 48 divisors (see below), whose sum is σ = 45572014418112. Its totient is φ = 8626254959616.

The previous prime is 21633288027739. The next prime is 21633288027787. The reversal of 21633288027740 is 4772088233612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42322529 + ... + 42830631.

It is an arithmetic number, because the mean of its divisors is an integer number (949416967044).

Almost surely, 2^{21633288027740} is an apocalyptic number.

21633288027740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21633288027740 is an abundant number, since it is smaller than the sum of its proper divisors (23938726390372).

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

21633288027740 is a wasteful number, since it uses less digits than its factorization.

21633288027740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514766 (or 514764 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 53.

The spelling of 21633288027740 in words is "twenty-one trillion, six hundred thirty-three billion, two hundred eighty-eight million, twenty-seven thousand, seven hundred forty".