4671578310661 has 2 divisors, whose sum is σ = 4671578310662. Its totient is φ = 4671578310660.

The previous prime is 4671578310617. The next prime is 4671578310691. The reversal of 4671578310661 is 1660138751764.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3386313957636 + 1285264353025 = 1840194^2 + 1133695^2 .

It is a cyclic number.

It is not a de Polignac number, because 4671578310661 - 2⁹ = 4671578310149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4671578310691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2335789155330 + 2335789155331.

It is an arithmetic number, because the mean of its divisors is an integer number (2335789155331).

Almost surely, 2^{4671578310661} is an apocalyptic number.

It is an amenable number.

4671578310661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4671578310661 is an equidigital number, since it uses as much as digits as its factorization.

4671578310661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 4671578310661 in words is "four trillion, six hundred seventy-one billion, five hundred seventy-eight million, three hundred ten thousand, six hundred sixty-one".