3186467475661 has 2 divisors, whose sum is σ = 3186467475662. Its totient is φ = 3186467475660.

The previous prime is 3186467475649. The next prime is 3186467475673. The reversal of 3186467475661 is 1665747646813.

It is a balanced prime because it is at equal distance from previous prime (3186467475649) and next prime (3186467475673).

It can be written as a sum of positive squares in only one way, i.e., 3141579002500 + 44888473161 = 1772450^2 + 211869^2 .

It is a cyclic number.

It is not a de Polignac number, because 3186467475661 - 2⁷ = 3186467475533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3186467475593 and 3186467475602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3186467470661) 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, 1593233737830 + 1593233737831.

It is an arithmetic number, because the mean of its divisors is an integer number (1593233737831).

Almost surely, 2^{3186467475661} is an apocalyptic number.

It is an amenable number.

3186467475661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3186467475661 is an equidigital number, since it uses as much as digits as its factorization.

3186467475661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 121927680, while the sum is 64.

The spelling of 3186467475661 in words is "three trillion, one hundred eighty-six billion, four hundred sixty-seven million, four hundred seventy-five thousand, six hundred sixty-one".