21093136482 has 48 divisors (see below), whose sum is σ = 48810595680. Its totient is φ = 6055441920.

The previous prime is 21093136481. The next prime is 21093136489. The reversal of 21093136482 is 28463139012.

It is a self number, because there is not a number n which added to its sum of digits gives 21093136482.

It is not an unprimeable number, because it can be changed into a prime (21093136481) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 750783 + ... + 778370.

It is an arithmetic number, because the mean of its divisors is an integer number (1016887410).

Almost surely, 2^21093136482 is an apocalyptic number.

21093136482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21093136482 is an abundant number, since it is smaller than the sum of its proper divisors (27717459198).

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

21093136482 is a wasteful number, since it uses less digits than its factorization.

21093136482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529199 (or 1529188 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 21093136482 in words is "twenty-one billion, ninety-three million, one hundred thirty-six thousand, four hundred eighty-two".