21799341316 has 9 divisors (see below), whose sum is σ = 38149364071. Its totient is φ = 10899523012.

The previous prime is 21799341293. The next prime is 21799341337. The reversal of 21799341316 is 61314399712.

The square root of 21799341316 is 147646.

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

It is a super-2 number, since 2×21799341316² (a number of 21 digits) contains 22 as substring.

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, 258381 + ... + 332203.

Almost surely, 2^21799341316 is an apocalyptic number.

21799341316 is the 147646-th square number.

It is an amenable number.

21799341316 is a deficient number, since it is larger than the sum of its proper divisors (16350022755).

21799341316 is an frugal number, since it uses more digits than its factorization.

21799341316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147650 (or 73825 counting only the distinct ones).

The product of its digits is 244944, while the sum is 46.

The spelling of 21799341316 in words is "twenty-one billion, seven hundred ninety-nine million, three hundred forty-one thousand, three hundred sixteen".