21035292384 has 24 divisors (see below), whose sum is σ = 55217642760. Its totient is φ = 7011764096.

The previous prime is 21035292379. The next prime is 21035292403. The reversal of 21035292384 is 48329253012.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 109558719 + ... + 109558910.

It is an arithmetic number, because the mean of its divisors is an integer number (2300735115).

Almost surely, 2^21035292384 is an apocalyptic number.

21035292384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21035292384 is an abundant number, since it is smaller than the sum of its proper divisors (34182350376).

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

21035292384 is a wasteful number, since it uses less digits than its factorization.

21035292384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219117642 (or 219117634 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 21035292384 in words is "twenty-one billion, thirty-five million, two hundred ninety-two thousand, three hundred eighty-four".