1061986081761 has 20 divisors (see below), whose sum is σ = 1730643986544. Its totient is φ = 643627927800.

The previous prime is 1061986081753. The next prime is 1061986081801. The reversal of 1061986081761 is 1671806891601.

1061986081761 is a `hidden beast` number, since 1 + 0 + 6 + 19 + 8 + 608 + 17 + 6 + 1 = 666.

It is not a de Polignac number, because 1061986081761 - 2³ = 1061986081753 is a prime.

It is a super-2 number, since 2×1061986081761² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1061986081698 and 1061986081707.

It is not an unprimeable number, because it can be changed into a prime (1061986085761) 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 19 ways as a sum of consecutive naturals, for example, 595950895 + ... + 595952676.

Almost surely, 2^{1061986081761} is an apocalyptic number.

1061986081761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1061986081761 is a deficient number, since it is larger than the sum of its proper divisors (668657904783).

1061986081761 is a wasteful number, since it uses less digits than its factorization.

1061986081761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191903594 (or 1191903585 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 54.

The spelling of 1061986081761 in words is "one trillion, sixty-one billion, nine hundred eighty-six million, eighty-one thousand, seven hundred sixty-one".