38661093546818 has 8 divisors (see below), whose sum is σ = 58232269533900. Its totient is φ = 19250337035520.

The previous prime is 38661093546799. The next prime is 38661093546847. The reversal of 38661093546818 is 81864539016683.

It can be written as a sum of positive squares in 2 ways, for example, as 35857856588449 + 2803236958369 = 5988143^2 + 1674287^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40104868343 + ... + 40104869306.

Almost surely, 2^{38661093546818} is an apocalyptic number.

38661093546818 is a deficient number, since it is larger than the sum of its proper divisors (19571175987082).

38661093546818 is a wasteful number, since it uses less digits than its factorization.

38661093546818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80209737892.

The product of its (nonzero) digits is 179159040, while the sum is 68.

The spelling of 38661093546818 in words is "thirty-eight trillion, six hundred sixty-one billion, ninety-three million, five hundred forty-six thousand, eight hundred eighteen".