30347848457681 has 8 divisors (see below), whose sum is σ = 30850137537000. Its totient is φ = 29845713680640.

The previous prime is 30347848457671. The next prime is 30347848457701. The reversal of 30347848457681 is 18675484874303.

It can be written as a sum of positive squares in 4 ways, for example, as 14136885609025 + 16210962848656 = 3759905^2 + 4026284^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 30347848457681 - 2¹⁰ = 30347848456657 is a prime.

It is a super-2 number, since 2×30347848457681² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30347848457611) 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, 38178926 + ... + 38965703.

It is an arithmetic number, because the mean of its divisors is an integer number (3856267192125).

Almost surely, 2^{30347848457681} is an apocalyptic number.

It is an amenable number.

30347848457681 is a deficient number, since it is larger than the sum of its proper divisors (502289079319).

30347848457681 is an equidigital number, since it uses as much as digits as its factorization.

30347848457681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77151139.

The product of its (nonzero) digits is 433520640, while the sum is 68.

The spelling of 30347848457681 in words is "thirty trillion, three hundred forty-seven billion, eight hundred forty-eight million, four hundred fifty-seven thousand, six hundred eighty-one".