10761719921 has 2 divisors, whose sum is σ = 10761719922. Its totient is φ = 10761719920.

The previous prime is 10761719827. The next prime is 10761719923. The reversal of 10761719921 is 12991716701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10142705521 + 619014400 = 100711^2 + 24880^2 .

It is an emirp because it is prime and its reverse (12991716701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10761719921 - 2¹⁰ = 10761718897 is a prime.

Together with 10761719923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10761719923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5380859960 + 5380859961.

It is an arithmetic number, because the mean of its divisors is an integer number (5380859961).

Almost surely, 2^10761719921 is an apocalyptic number.

It is an amenable number.

10761719921 is a deficient number, since it is larger than the sum of its proper divisors (1).

10761719921 is an equidigital number, since it uses as much as digits as its factorization.

10761719921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 44.

The spelling of 10761719921 in words is "ten billion, seven hundred sixty-one million, seven hundred nineteen thousand, nine hundred twenty-one".