21040153410 has 32 divisors (see below), whose sum is σ = 50535216000. Its totient is φ = 5606391168.

The previous prime is 21040153403. The next prime is 21040153439. The reversal of 21040153410 is 1435104012.

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, 230035 + ... + 308214.

It is an arithmetic number, because the mean of its divisors is an integer number (1579225500).

Almost surely, 2^21040153410 is an apocalyptic number.

21040153410 is an abundant number, since it is smaller than the sum of its proper divisors (29495062590).

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

21040153410 is a wasteful number, since it uses less digits than its factorization.

21040153410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539562.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 21040153410 its reverse (1435104012), we get a palindrome (22475257422).

The spelling of 21040153410 in words is "twenty-one billion, forty million, one hundred fifty-three thousand, four hundred ten".