21763396319 has 8 divisors (see below), whose sum is σ = 24873346080. Its totient is φ = 18653669856.

The previous prime is 21763396313. The next prime is 21763396331. The reversal of 21763396319 is 91369336712.

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

It is a cyclic number.

It is not a de Polignac number, because 21763396319 - 2¹⁶ = 21763330783 is a prime.

It is a super-2 number, since 2×21763396319² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21763396313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343097 + ... + 401549.

It is an arithmetic number, because the mean of its divisors is an integer number (3109168260).

Almost surely, 2^21763396319 is an apocalyptic number.

21763396319 is a deficient number, since it is larger than the sum of its proper divisors (3109949761).

21763396319 is an equidigital number, since it uses as much as digits as its factorization.

21763396319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111649.

The product of its digits is 1102248, while the sum is 50.

The spelling of 21763396319 in words is "twenty-one billion, seven hundred sixty-three million, three hundred ninety-six thousand, three hundred nineteen".