21227867846 has 8 divisors (see below), whose sum is σ = 32702391120. Its totient is φ = 10327070808.

The previous prime is 21227867803. The next prime is 21227867851. The reversal of 21227867846 is 64876872212.

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

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, 143431466 + ... + 143431613.

It is an arithmetic number, because the mean of its divisors is an integer number (4087798890).

Almost surely, 2^21227867846 is an apocalyptic number.

21227867846 is a deficient number, since it is larger than the sum of its proper divisors (11474523274).

21227867846 is a wasteful number, since it uses less digits than its factorization.

21227867846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286863118.

The product of its digits is 3612672, while the sum is 53.

The spelling of 21227867846 in words is "twenty-one billion, two hundred twenty-seven million, eight hundred sixty-seven thousand, eight hundred forty-six".