21792845376 has 63 divisors (see below), whose sum is σ = 62475413403. Its totient is φ = 7263100800.

The previous prime is 21792845363. The next prime is 21792845381. The reversal of 21792845376 is 67354829712.

It is a happy number.

The square root of 21792845376 is 147624.

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

21792845376 is a `hidden beast` number, since 2 + 17 + 92 + 8 + 4 + 537 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3539901 + ... + 3546051.

Almost surely, 2^21792845376 is an apocalyptic number.

21792845376 is the 147624-th square number.

It is an amenable number.

21792845376 is an abundant number, since it is smaller than the sum of its proper divisors (40682568027).

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

21792845376 is an frugal number, since it uses more digits than its factorization.

21792845376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12320 (or 6156 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 21792845376 in words is "twenty-one billion, seven hundred ninety-two million, eight hundred forty-five thousand, three hundred seventy-six".