1128064906817 has 8 divisors (see below), whose sum is σ = 1143569869416. Its totient is φ = 1112561350272.

The previous prime is 1128064906799. The next prime is 1128064906823. The reversal of 1128064906817 is 7186094608211.

It is a Cunningham number, because it is equal to 1062104²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 1128064906816 = 1^2 + 1062104^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1128064906817 - 2¹⁸ = 1128064644673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1128064906117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1318223 + ... + 1998459.

It is an arithmetic number, because the mean of its divisors is an integer number (142946233677).

Almost surely, 2^{1128064906817} is an apocalyptic number.

It is an amenable number.

1128064906817 is a deficient number, since it is larger than the sum of its proper divisors (15504962599).

1128064906817 is an equidigital number, since it uses as much as digits as its factorization.

1128064906817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703027.

The product of its (nonzero) digits is 1161216, while the sum is 53.

The spelling of 1128064906817 in words is "one trillion, one hundred twenty-eight billion, sixty-four million, nine hundred six thousand, eight hundred seventeen".