20763464441 has 2 divisors, whose sum is σ = 20763464442. Its totient is φ = 20763464440.

The previous prime is 20763464419. The next prime is 20763464459. The reversal of 20763464441 is 14446436702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11389158400 + 9374306041 = 106720^2 + 96821^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20763464441 is a prime.

It is a super-2 number, since 2×20763464441² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20763464041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10381732220 + 10381732221.

It is an arithmetic number, because the mean of its divisors is an integer number (10381732221).

Almost surely, 2^20763464441 is an apocalyptic number.

It is an amenable number.

20763464441 is a deficient number, since it is larger than the sum of its proper divisors (1).

20763464441 is an equidigital number, since it uses as much as digits as its factorization.

20763464441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 41.

The spelling of 20763464441 in words is "twenty billion, seven hundred sixty-three million, four hundred sixty-four thousand, four hundred forty-one".