21460821182 has 16 divisors (see below), whose sum is σ = 34174787760. Its totient is φ = 10072556928.

The previous prime is 21460821181. The next prime is 21460821211. The reversal of 21460821182 is 28112806412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21460821181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819833 + ... + 845604.

It is an arithmetic number, because the mean of its divisors is an integer number (2135924235).

Almost surely, 2^21460821182 is an apocalyptic number.

21460821182 is a deficient number, since it is larger than the sum of its proper divisors (12713966578).

21460821182 is a wasteful number, since it uses less digits than its factorization.

21460821182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665835.

The product of its (nonzero) digits is 12288, while the sum is 35.

The spelling of 21460821182 in words is "twenty-one billion, four hundred sixty million, eight hundred twenty-one thousand, one hundred eighty-two".