21014443410 has 64 divisors (see below), whose sum is σ = 54844739712. Its totient is φ = 5131662336.

The previous prime is 21014443361. The next prime is 21014443421. The reversal of 21014443410 is 1434441012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 537952 + ... + 575691.

It is an arithmetic number, because the mean of its divisors is an integer number (856949058).

Almost surely, 2^21014443410 is an apocalyptic number.

21014443410 is an abundant number, since it is smaller than the sum of its proper divisors (33830296302).

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

21014443410 is a wasteful number, since it uses less digits than its factorization.

21014443410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113707.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21014443410 its reverse (1434441012), we get a palindrome (22448884422).

The spelling of 21014443410 in words is "twenty-one billion, fourteen million, four hundred forty-three thousand, four hundred ten".