1061908968961 has 16 divisors (see below), whose sum is σ = 1114605273600. Its totient is φ = 1010492841600.

The previous prime is 1061908968949. The next prime is 1061908968983. The reversal of 1061908968961 is 1698698091601.

It is a cyclic number.

It is not a de Polignac number, because 1061908968961 - 2⁷ = 1061908968833 is a prime.

It is a super-2 number, since 2×1061908968961² (a number of 25 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 = 1061908968893 and 1061908968902.

It is not an unprimeable number, because it can be changed into a prime (1061908963961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563851 + ... + 1562608.

It is an arithmetic number, because the mean of its divisors is an integer number (69662829600).

Almost surely, 2^{1061908968961} is an apocalyptic number.

It is an amenable number.

1061908968961 is a deficient number, since it is larger than the sum of its proper divisors (52696304639).

1061908968961 is a wasteful number, since it uses less digits than its factorization.

1061908968961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126760.

The product of its (nonzero) digits is 10077696, while the sum is 64.

The spelling of 1061908968961 in words is "one trillion, sixty-one billion, nine hundred eight million, nine hundred sixty-eight thousand, nine hundred sixty-one".