38404028821105 has 12 divisors (see below), whose sum is σ = 48638011018932. Its totient is φ = 29106211315680.

The previous prime is 38404028821099. The next prime is 38404028821111. The reversal of 38404028821105 is 50112882040483.

It is an interprime number because it is at equal distance from previous prime (38404028821099) and next prime (38404028821111).

It can be written as a sum of positive squares in 2 ways, for example, as 15275402957376 + 23128625863729 = 3908376^2 + 4809223^2 .

It is not a de Polignac number, because 38404028821105 - 2³ = 38404028821097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10638233326 + ... + 10638236935.

It is an arithmetic number, because the mean of its divisors is an integer number (4053167584911).

Almost surely, 2^{38404028821105} is an apocalyptic number.

It is an amenable number.

38404028821105 is a deficient number, since it is larger than the sum of its proper divisors (10233982197827).

38404028821105 is a wasteful number, since it uses less digits than its factorization.

38404028821105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21276470304 (or 21276470285 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 46.

The spelling of 38404028821105 in words is "thirty-eight trillion, four hundred four billion, twenty-eight million, eight hundred twenty-one thousand, one hundred five".