21675013422 has 8 divisors (see below), whose sum is σ = 43350026856. Its totient is φ = 7225004472.

The previous prime is 21675013387. The next prime is 21675013469. The reversal of 21675013422 is 22431057612.

It is a sphenic number, since it is the product of 3 distinct primes.

21675013422 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1806251113 + ... + 1806251124.

It is an arithmetic number, because the mean of its divisors is an integer number (5418753357).

Almost surely, 2^21675013422 is an apocalyptic number.

21675013422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21675013422 is a wasteful number, since it uses less digits than its factorization.

21675013422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612502242.

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 21675013422 in words is "twenty-one billion, six hundred seventy-five million, thirteen thousand, four hundred twenty-two".