10742128643 has 4 divisors (see below), whose sum is σ = 10924198680. Its totient is φ = 10560058608.

The previous prime is 10742128577. The next prime is 10742128673. The reversal of 10742128643 is 34682124701.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10742128643 - 2¹⁰ = 10742127619 is a prime.

It is a super-2 number, since 2×10742128643² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10742128597 and 10742128606.

It is not an unprimeable number, because it can be changed into a prime (10742128673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91034930 + ... + 91035047.

It is an arithmetic number, because the mean of its divisors is an integer number (2731049670).

Almost surely, 2^10742128643 is an apocalyptic number.

10742128643 is a deficient number, since it is larger than the sum of its proper divisors (182070037).

10742128643 is an equidigital number, since it uses as much as digits as its factorization.

10742128643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182070036.

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 10742128643 in words is "ten billion, seven hundred forty-two million, one hundred twenty-eight thousand, six hundred forty-three".