21114320526 has 48 divisors (see below), whose sum is σ = 49580635104. Its totient is φ = 6455322432.

The previous prime is 21114320483. The next prime is 21114320527. The reversal of 21114320526 is 62502341112.

21114320526 is a `hidden beast` number, since 2 + 1 + 114 + 3 + 20 + 526 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 21114320526.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114320527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250626 + ... + 324101.

It is an arithmetic number, because the mean of its divisors is an integer number (1032929898).

Almost surely, 2^21114320526 is an apocalyptic number.

21114320526 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

21114320526 is an abundant number, since it is smaller than the sum of its proper divisors (28466314578).

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

21114320526 is a wasteful number, since it uses less digits than its factorization.

21114320526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574905 (or 574902 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 21114320526 its reverse (62502341112), we get a palindrome (83616661638).

The spelling of 21114320526 in words is "twenty-one billion, one hundred fourteen million, three hundred twenty thousand, five hundred twenty-six".