21041763466 has 8 divisors (see below), whose sum is σ = 31566774240. Its totient is φ = 10519505388.

The previous prime is 21041763437. The next prime is 21041763487. The reversal of 21041763466 is 66436714012.

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

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, 668956 + ... + 699703.

It is an arithmetic number, because the mean of its divisors is an integer number (3945846780).

Almost surely, 2^21041763466 is an apocalyptic number.

21041763466 is a deficient number, since it is larger than the sum of its proper divisors (10525010774).

21041763466 is a wasteful number, since it uses less digits than its factorization.

21041763466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376348.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 21041763466 in words is "twenty-one billion, forty-one million, seven hundred sixty-three thousand, four hundred sixty-six".