21827580962 has 16 divisors (see below), whose sum is σ = 35732688192. Its totient is φ = 9917508720.

The previous prime is 21827580919. The next prime is 21827580989. The reversal of 21827580962 is 26908572812.

It is a self number, because there is not a number n which added to its sum of digits gives 21827580962.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151433 + ... + 258044.

It is an arithmetic number, because the mean of its divisors is an integer number (2233293012).

Almost surely, 2^21827580962 is an apocalyptic number.

21827580962 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21827580962 is a deficient number, since it is larger than the sum of its proper divisors (13905107230).

21827580962 is a wasteful number, since it uses less digits than its factorization.

21827580962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411913.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 21827580962 in words is "twenty-one billion, eight hundred twenty-seven million, five hundred eighty thousand, nine hundred sixty-two".