21763751143 has 2 divisors, whose sum is σ = 21763751144. Its totient is φ = 21763751142.

The previous prime is 21763751137. The next prime is 21763751161. The reversal of 21763751143 is 34115736712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21763751143 - 2¹⁷ = 21763620071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21763751096 and 21763751105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21763751843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10881875571 + 10881875572.

It is an arithmetic number, because the mean of its divisors is an integer number (10881875572).

Almost surely, 2^21763751143 is an apocalyptic number.

21763751143 is a deficient number, since it is larger than the sum of its proper divisors (1).

21763751143 is an equidigital number, since it uses as much as digits as its factorization.

21763751143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 40.

The spelling of 21763751143 in words is "twenty-one billion, seven hundred sixty-three million, seven hundred fifty-one thousand, one hundred forty-three".