38281909001 has 12 divisors (see below), whose sum is σ = 45032381460. Its totient is φ = 32444375040.

The previous prime is 38281908997. The next prime is 38281909069. The reversal of 38281909001 is 10090918283.

It can be written as a sum of positive squares in 2 ways, for example, as 25999950025 + 12281958976 = 161245^2 + 110824^2 .

It is not a de Polignac number, because 38281909001 - 2² = 38281908997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38281909001.

It is not an unprimeable number, because it can be changed into a prime (38281909301) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4384760 + ... + 4393481.

It is an arithmetic number, because the mean of its divisors is an integer number (3752698455).

Almost surely, 2^38281909001 is an apocalyptic number.

It is an amenable number.

38281909001 is a deficient number, since it is larger than the sum of its proper divisors (6750472459).

38281909001 is an equidigital number, since it uses as much as digits as its factorization.

38281909001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8778344 (or 8778337 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The spelling of 38281909001 in words is "thirty-eight billion, two hundred eighty-one million, nine hundred nine thousand, one".