10542664549 has 2 divisors, whose sum is σ = 10542664550. Its totient is φ = 10542664548.

The previous prime is 10542664507. The next prime is 10542664567. The reversal of 10542664549 is 94546624501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6759799524 + 3782865025 = 82218^2 + 61505^2 .

It is a cyclic number.

It is not a de Polignac number, because 10542664549 - 2⁷ = 10542664421 is a prime.

It is a super-2 number, since 2×10542664549² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10542664499 and 10542664508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10542664579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5271332274 + 5271332275.

It is an arithmetic number, because the mean of its divisors is an integer number (5271332275).

Almost surely, 2^10542664549 is an apocalyptic number.

It is an amenable number.

10542664549 is a deficient number, since it is larger than the sum of its proper divisors (1).

10542664549 is an equidigital number, since it uses as much as digits as its factorization.

10542664549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 10542664549 in words is "ten billion, five hundred forty-two million, six hundred sixty-four thousand, five hundred forty-nine".