1861120092827 has 4 divisors (see below), whose sum is σ = 1892664501240. Its totient is φ = 1829575684416.

The previous prime is 1861120092803. The next prime is 1861120092859. The reversal of 1861120092827 is 7282900211681.

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

It is a cyclic number.

It is not a de Polignac number, because 1861120092827 - 2¹² = 1861120088731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1861120091827) 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 3 ways as a sum of consecutive naturals, for example, 15772204118 + ... + 15772204235.

It is an arithmetic number, because the mean of its divisors is an integer number (473166125310).

Almost surely, 2^{1861120092827} is an apocalyptic number.

1861120092827 is a deficient number, since it is larger than the sum of its proper divisors (31544408413).

1861120092827 is an equidigital number, since it uses as much as digits as its factorization.

1861120092827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31544408412.

The product of its (nonzero) digits is 193536, while the sum is 47.

The spelling of 1861120092827 in words is "one trillion, eight hundred sixty-one billion, one hundred twenty million, ninety-two thousand, eight hundred twenty-seven".