1075388173217 has 2 divisors, whose sum is σ = 1075388173218. Its totient is φ = 1075388173216.

The previous prime is 1075388173199. The next prime is 1075388173253. The reversal of 1075388173217 is 7123718835701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 782161591201 + 293226582016 = 884399^2 + 541504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1075388173217 is a prime.

It is a super-2 number, since 2×1075388173217² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1075388172217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537694086608 + 537694086609.

It is an arithmetic number, because the mean of its divisors is an integer number (537694086609).

Almost surely, 2^{1075388173217} is an apocalyptic number.

It is an amenable number.

1075388173217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1075388173217 is an equidigital number, since it uses as much as digits as its factorization.

1075388173217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1975680, while the sum is 53.

The spelling of 1075388173217 in words is "one trillion, seventy-five billion, three hundred eighty-eight million, one hundred seventy-three thousand, two hundred seventeen".