21342410414 has 16 divisors (see below), whose sum is σ = 34479507552. Its totient is φ = 9849398688.

The previous prime is 21342410407. The next prime is 21342410429. The reversal of 21342410414 is 41401424312.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288527 + ... + 354869.

It is an arithmetic number, because the mean of its divisors is an integer number (2154969222).

Almost surely, 2^21342410414 is an apocalyptic number.

21342410414 is a deficient number, since it is larger than the sum of its proper divisors (13137097138).

21342410414 is a wasteful number, since it uses less digits than its factorization.

21342410414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78731.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 21342410414 its reverse (41401424312), we get a palindrome (62743834726).

The spelling of 21342410414 in words is "twenty-one billion, three hundred forty-two million, four hundred ten thousand, four hundred fourteen".