21361435010 has 32 divisors (see below), whose sum is σ = 39435984000. Its totient is φ = 8326099840.

The previous prime is 21361435009. The next prime is 21361435033. The reversal of 21361435010 is 1053416312.

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 15 ways as a sum of consecutive naturals, for example, 312941 + ... + 375039.

It is an arithmetic number, because the mean of its divisors is an integer number (1232374500).

Almost surely, 2^21361435010 is an apocalyptic number.

21361435010 is a deficient number, since it is larger than the sum of its proper divisors (18074548990).

21361435010 is a wasteful number, since it uses less digits than its factorization.

21361435010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62986.

The product of its (nonzero) digits is 2160, while the sum is 26.

The spelling of 21361435010 in words is "twenty-one billion, three hundred sixty-one million, four hundred thirty-five thousand, ten".