10821652378384 has 15 divisors (see below), whose sum is σ = 20966976977767. Its totient is φ = 5410819609936.

The previous prime is 10821652378351. The next prime is 10821652378393. The reversal of 10821652378384 is 48387325612801.

The square root of 10821652378384 is 3289628.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12747309 + ... + 13569715.

Almost surely, 2^{10821652378384} is an apocalyptic number.

10821652378384 is the 3289628-th square number.

It is an amenable number.

10821652378384 is a deficient number, since it is larger than the sum of its proper divisors (10145324599383).

10821652378384 is an frugal number, since it uses more digits than its factorization.

10821652378384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644822 (or 822409 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 58.

The spelling of 10821652378384 in words is "ten trillion, eight hundred twenty-one billion, six hundred fifty-two million, three hundred seventy-eight thousand, three hundred eighty-four".