21093405414 has 16 divisors (see below), whose sum is σ = 42901842240. Its totient is φ = 6911963240.

The previous prime is 21093405383. The next prime is 21093405433. The reversal of 21093405414 is 41450439012.

It is a super-2 number, since 2×21093405414² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29792592 + ... + 29793299.

It is an arithmetic number, because the mean of its divisors is an integer number (2681365140).

Almost surely, 2^21093405414 is an apocalyptic number.

21093405414 is an abundant number, since it is smaller than the sum of its proper divisors (21808436826).

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

21093405414 is a wasteful number, since it uses less digits than its factorization.

21093405414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59585955.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 21093405414 in words is "twenty-one billion, ninety-three million, four hundred five thousand, four hundred fourteen".