21092741382 has 16 divisors (see below), whose sum is σ = 42342309360. Its totient is φ = 7004776032.

The previous prime is 21092741363. The next prime is 21092741413. The reversal of 21092741382 is 28314729012.

It is a self number, because there is not a number n which added to its sum of digits gives 21092741382.

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, 6532693 + ... + 6535920.

It is an arithmetic number, because the mean of its divisors is an integer number (2646394335).

Almost surely, 2^21092741382 is an apocalyptic number.

21092741382 is an abundant number, since it is smaller than the sum of its proper divisors (21249567978).

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

21092741382 is a wasteful number, since it uses less digits than its factorization.

21092741382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13068887.

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 21092741382 in words is "twenty-one billion, ninety-two million, seven hundred forty-one thousand, three hundred eighty-two".