1078711521317 has 16 divisors (see below), whose sum is σ = 1173152490480. Its totient is φ = 987719113728.

The previous prime is 1078711521287. The next prime is 1078711521337. The reversal of 1078711521317 is 7131251178701.

It can be written as a sum of positive squares in 8 ways, for example, as 227642540161 + 851068981156 = 477119^2 + 922534^2 .

It is a cyclic number.

It is not a de Polignac number, because 1078711521317 - 2⁸ = 1078711521061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078711521337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6579503 + ... + 6741459.

It is an arithmetic number, because the mean of its divisors is an integer number (73322030655).

Almost surely, 2^{1078711521317} is an apocalyptic number.

1078711521317 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1078711521317 is a deficient number, since it is larger than the sum of its proper divisors (94440969163).

1078711521317 is a wasteful number, since it uses less digits than its factorization.

1078711521317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172600.

The product of its (nonzero) digits is 82320, while the sum is 44.

The spelling of 1078711521317 in words is "one trillion, seventy-eight billion, seven hundred eleven million, five hundred twenty-one thousand, three hundred seventeen".