351981000001 has 8 divisors (see below), whose sum is σ = 352798993800. Its totient is φ = 351163158528.

The previous prime is 351980999989. The next prime is 351981000013. The reversal of 351981000001 is 100000189153.

It is an interprime number because it is at equal distance from previous prime (351980999989) and next prime (351981000013).

It can be written as a sum of positive squares in 4 ways, for example, as 3938817600 + 348042182401 = 62760^2 + 589951^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351981000001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351981000071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5525605 + ... + 5588941.

It is an arithmetic number, because the mean of its divisors is an integer number (44099874225).

Almost surely, 2^351981000001 is an apocalyptic number.

It is an amenable number.

351981000001 is a deficient number, since it is larger than the sum of its proper divisors (817993799).

351981000001 is a wasteful number, since it uses less digits than its factorization.

351981000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76163.

The product of its (nonzero) digits is 1080, while the sum is 28.

Adding to 351981000001 its reverse (100000189153), we get a palindrome (451981189154).

The spelling of 351981000001 in words is "three hundred fifty-one billion, nine hundred eighty-one million, one", and thus it is an aban number.