1861782840058 has 16 divisors (see below), whose sum is σ = 2794077732096. Its totient is φ = 930423684960.

The previous prime is 1861782840031. The next prime is 1861782840103. The reversal of 1861782840058 is 8500482871681.

It is a junction number, because it is equal to n+sod(n) for n = 1861782839984 and 1861782840011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62391910 + ... + 62421742.

It is an arithmetic number, because the mean of its divisors is an integer number (174629858256).

Almost surely, 2^{1861782840058} is an apocalyptic number.

1861782840058 is a deficient number, since it is larger than the sum of its proper divisors (932294892038).

1861782840058 is a wasteful number, since it uses less digits than its factorization.

1861782840058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44469.

The product of its (nonzero) digits is 6881280, while the sum is 58.

The spelling of 1861782840058 in words is "one trillion, eight hundred sixty-one billion, seven hundred eighty-two million, eight hundred forty thousand, fifty-eight".