1059851719081 has 9 divisors (see below), whose sum is σ = 1078181565591. Its totient is φ = 1041828420144.

The previous prime is 1059851719079. The next prime is 1059851719097. The reversal of 1059851719081 is 1809171589501.

The square root of 1059851719081 is 1029491.

It is a perfect power (a square), and thus also a powerful number.

1059851719081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1053786424681 + 6065294400 = 1026541^2 + 77880^2 .

It is not a de Polignac number, because 1059851719081 - 2¹ = 1059851719079 is a prime.

It is a super-2 number, since 2×1059851719081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1059851719001) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 60731245 + ... + 60748693.

Almost surely, 2^{1059851719081} is an apocalyptic number.

1059851719081 is the 1029491-st square number.

1059851719081 is the 514746-th centered octagonal number.

It is an amenable number.

1059851719081 is a deficient number, since it is larger than the sum of its proper divisors (18329846510).

1059851719081 is an frugal number, since it uses more digits than its factorization.

1059851719081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35016 (or 17508 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 55.

The spelling of 1059851719081 in words is "one trillion, fifty-nine billion, eight hundred fifty-one million, seven hundred nineteen thousand, eighty-one".