21468966835 has 8 divisors (see below), whose sum is σ = 26028356256. Its totient is φ = 16998109440.

The previous prime is 21468966811. The next prime is 21468966877. The reversal of 21468966835 is 53866986412.

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

It is not a de Polignac number, because 21468966835 - 2⁵ = 21468966803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21468966835.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22132471 + ... + 22133440.

It is an arithmetic number, because the mean of its divisors is an integer number (3253544532).

Almost surely, 2^21468966835 is an apocalyptic number.

21468966835 is a deficient number, since it is larger than the sum of its proper divisors (4559389421).

21468966835 is an equidigital number, since it uses as much as digits as its factorization.

21468966835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44266013.

The product of its digits is 14929920, while the sum is 58.

The spelling of 21468966835 in words is "twenty-one billion, four hundred sixty-eight million, nine hundred sixty-six thousand, eight hundred thirty-five".