21140400000010 has 16 divisors (see below), whose sum is σ = 38081526019272. Its totient is φ = 8449758662400.

The previous prime is 21140399999993. The next prime is 21140400000017. The reversal of 21140400000010 is 1000000404112.

It can be written as a sum of positive squares in 4 ways, for example, as 21139792426809 + 607573201 = 4597803^2 + 24649^2 .

It is not an unprimeable number, because it can be changed into a prime (21140400000017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800153331 + ... + 800179750.

Almost surely, 2^{21140400000010} is an apocalyptic number.

21140400000010 is a deficient number, since it is larger than the sum of its proper divisors (16941126019262).

21140400000010 is a wasteful number, since it uses less digits than its factorization.

21140400000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600334409.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21140400000010 its reverse (1000000404112), we get a palindrome (22140400404122).

The spelling of 21140400000010 in words is "twenty-one trillion, one hundred forty billion, four hundred million, ten", and thus it is an aban number.