1039860291986 has 16 divisors (see below), whose sum is σ = 1597930581240. Its totient is φ = 507218296320.

The previous prime is 1039860291979. The next prime is 1039860291991. The reversal of 1039860291986 is 6891920689301.

It can be written as a sum of positive squares in 4 ways, for example, as 415404741361 + 624455550625 = 644519^2 + 790225^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014470 + ... + 1763198.

Almost surely, 2^{1039860291986} is an apocalyptic number.

1039860291986 is a deficient number, since it is larger than the sum of its proper divisors (558070289254).

1039860291986 is a wasteful number, since it uses less digits than its factorization.

1039860291986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765709.

The product of its (nonzero) digits is 10077696, while the sum is 62.

The spelling of 1039860291986 in words is "one trillion, thirty-nine billion, eight hundred sixty million, two hundred ninety-one thousand, nine hundred eighty-six".