21924749010 has 32 divisors (see below), whose sum is σ = 52910125632. Its totient is φ = 5814296640.

The previous prime is 21924749009. The next prime is 21924749017. The reversal of 21924749010 is 1094742912.

It is a self number, because there is not a number n which added to its sum of digits gives 21924749010.

It is not an unprimeable number, because it can be changed into a prime (21924749017) by changing a digit.

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, 2013424 + ... + 2024283.

It is an arithmetic number, because the mean of its divisors is an integer number (1653441426).

Almost surely, 2^21924749010 is an apocalyptic number.

21924749010 is an abundant number, since it is smaller than the sum of its proper divisors (30985376622).

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

21924749010 is a wasteful number, since it uses less digits than its factorization.

21924749010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037898.

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 21924749010 in words is "twenty-one billion, nine hundred twenty-four million, seven hundred forty-nine thousand, ten".