21596860882 has 16 divisors (see below), whose sum is σ = 32459090400. Its totient is φ = 10777181760.

The previous prime is 21596860871. The next prime is 21596860907. The reversal of 21596860882 is 28806869512.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4266469 + ... + 4271527.

It is an arithmetic number, because the mean of its divisors is an integer number (2028693150).

Almost surely, 2^21596860882 is an apocalyptic number.

21596860882 is a deficient number, since it is larger than the sum of its proper divisors (10862229518).

21596860882 is a wasteful number, since it uses less digits than its factorization.

21596860882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8841.

The product of its (nonzero) digits is 3317760, while the sum is 55.

The spelling of 21596860882 in words is "twenty-one billion, five hundred ninety-six million, eight hundred sixty thousand, eight hundred eighty-two".