21842868414 has 32 divisors (see below), whose sum is σ = 44313571584. Its totient is φ = 7176375360.

The previous prime is 21842868403. The next prime is 21842868433. The reversal of 21842868414 is 41486824812.

It is a super-2 number, since 2×21842868414² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 2582877 + ... + 2591319.

It is an arithmetic number, because the mean of its divisors is an integer number (1384799112).

Almost surely, 2^21842868414 is an apocalyptic number.

21842868414 is an abundant number, since it is smaller than the sum of its proper divisors (22470703170).

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

21842868414 is a wasteful number, since it uses less digits than its factorization.

21842868414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14592.

The product of its digits is 786432, while the sum is 48.

The spelling of 21842868414 in words is "twenty-one billion, eight hundred forty-two million, eight hundred sixty-eight thousand, four hundred fourteen".