3946158091826 has 32 divisors (see below), whose sum is σ = 6361257414960. Its totient is φ = 1829277997056.

The previous prime is 3946158091801. The next prime is 3946158091901. The reversal of 3946158091826 is 6281908516493.

It can be written as a sum of positive squares in 8 ways, for example, as 1382620870801 + 2563537221025 = 1175849^2 + 1601105^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 980720 + ... + 2975588.

Almost surely, 2^{3946158091826} is an apocalyptic number.

3946158091826 is a deficient number, since it is larger than the sum of its proper divisors (2415099323134).

3946158091826 is a wasteful number, since it uses less digits than its factorization.

3946158091826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995758.

The product of its (nonzero) digits is 22394880, while the sum is 62.

The spelling of 3946158091826 in words is "three trillion, nine hundred forty-six billion, one hundred fifty-eight million, ninety-one thousand, eight hundred twenty-six".