30561697396841 has 8 divisors (see below), whose sum is σ = 32917681884360. Its totient is φ = 28206439293312.

The previous prime is 30561697396823. The next prime is 30561697396877. The reversal of 30561697396841 is 14869379616503.

It can be written as a sum of positive squares in 4 ways, for example, as 77606259241 + 30484091137600 = 278579^2 + 5521240^2 .

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 30561697396841 - 2⁶ = 30561697396777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30561697396891) 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, 181508606 + ... + 181676903.

It is an arithmetic number, because the mean of its divisors is an integer number (4114710235545).

Almost surely, 2^{30561697396841} is an apocalyptic number.

It is an amenable number.

30561697396841 is a deficient number, since it is larger than the sum of its proper divisors (2355984487519).

30561697396841 is a wasteful number, since it uses less digits than its factorization.

30561697396841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363191995.

The product of its (nonzero) digits is 176359680, while the sum is 68.

The spelling of 30561697396841 in words is "thirty trillion, five hundred sixty-one billion, six hundred ninety-seven million, three hundred ninety-six thousand, eight hundred forty-one".