10743562721 has 2 divisors, whose sum is σ = 10743562722. Its totient is φ = 10743562720.

The previous prime is 10743562717. The next prime is 10743562723. The reversal of 10743562721 is 12726534701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8237559121 + 2506003600 = 90761^2 + 50060^2 .

It is a cyclic number.

It is not a de Polignac number, because 10743562721 - 2² = 10743562717 is a prime.

Together with 10743562723, 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 (10743562723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5371781360 + 5371781361.

It is an arithmetic number, because the mean of its divisors is an integer number (5371781361).

Almost surely, 2^10743562721 is an apocalyptic number.

It is an amenable number.

10743562721 is a deficient number, since it is larger than the sum of its proper divisors (1).

10743562721 is an equidigital number, since it uses as much as digits as its factorization.

10743562721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 10743562721 in words is "ten billion, seven hundred forty-three million, five hundred sixty-two thousand, seven hundred twenty-one".