107742527561 has 4 divisors (see below), whose sum is σ = 107746587012. Its totient is φ = 107738468112.

The previous prime is 107742527551. The next prime is 107742527567. The reversal of 107742527561 is 165725247701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32164270336 + 75578257225 = 179344^2 + 274915^2 .

It is a cyclic number.

It is not a de Polignac number, because 107742527561 - 2³⁴ = 90562658377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107742527567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1989650 + ... + 2043083.

It is an arithmetic number, because the mean of its divisors is an integer number (26936646753).

Almost surely, 2^107742527561 is an apocalyptic number.

It is an amenable number.

107742527561 is a deficient number, since it is larger than the sum of its proper divisors (4059451).

107742527561 is an equidigital number, since it uses as much as digits as its factorization.

107742527561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4059450.

The product of its (nonzero) digits is 823200, while the sum is 47.

The spelling of 107742527561 in words is "one hundred seven billion, seven hundred forty-two million, five hundred twenty-seven thousand, five hundred sixty-one".