1061727261381 has 16 divisors (see below), whose sum is σ = 1596405835200. Its totient is φ = 697253722704.

The previous prime is 1061727261359. The next prime is 1061727261431. The reversal of 1061727261381 is 1831627271601.

1061727261381 is a `hidden beast` number, since 1 + 0 + 6 + 1 + 7 + 2 + 7 + 261 + 381 = 666.

It is not a de Polignac number, because 1061727261381 - 2⁷ = 1061727261253 is a prime.

It is a super-2 number, since 2×1061727261381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061727261341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293455146 + ... + 293458763.

It is an arithmetic number, because the mean of its divisors is an integer number (99775364700).

Almost surely, 2^{1061727261381} is an apocalyptic number.

It is an amenable number.

1061727261381 is a deficient number, since it is larger than the sum of its proper divisors (534678573819).

1061727261381 is an equidigital number, since it uses as much as digits as its factorization.

1061727261381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586913985 (or 586913979 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 1061727261381 in words is "one trillion, sixty-one billion, seven hundred twenty-seven million, two hundred sixty-one thousand, three hundred eighty-one".