1986146704 has 20 divisors (see below), whose sum is σ = 3849314764. Its totient is φ = 992775168.

The previous prime is 1986146671. The next prime is 1986146783. The reversal of 1986146704 is 4076416891.

It can be written as a sum of positive squares in 2 ways, for example, as 737231104 + 1248915600 = 27152^2 + 35340^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42364 + ... + 75940.

Almost surely, 2^1986146704 is an apocalyptic number.

It is an amenable number.

1986146704 is a deficient number, since it is larger than the sum of its proper divisors (1863168060).

1986146704 is a wasteful number, since it uses less digits than its factorization.

1986146704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37282 (or 37276 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 1986146704 is about 44566.2058515194. The cubic root of 1986146704 is about 1257.0052974927.

The spelling of 1986146704 in words is "one billion, nine hundred eighty-six million, one hundred forty-six thousand, seven hundred four".