4091606949761 has 4 divisors (see below), whose sum is σ = 4091827504452. Its totient is φ = 4091386395072.

The previous prime is 4091606949757. The next prime is 4091606949847. The reversal of 4091606949761 is 1679496061904.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 934375490161 + 3157231459600 = 966631^2 + 1776860^2 .

It is a cyclic number.

It is not a de Polignac number, because 4091606949761 - 2² = 4091606949757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4091606949694 and 4091606949703.

It is not an unprimeable number, because it can be changed into a prime (4091606949721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110249516 + ... + 110286621.

It is an arithmetic number, because the mean of its divisors is an integer number (1022956876113).

Almost surely, 2^{4091606949761} is an apocalyptic number.

It is an amenable number.

4091606949761 is a deficient number, since it is larger than the sum of its proper divisors (220554691).

4091606949761 is a wasteful number, since it uses less digits than its factorization.

4091606949761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220554690.

The product of its (nonzero) digits is 17635968, while the sum is 62.

The spelling of 4091606949761 in words is "four trillion, ninety-one billion, six hundred six million, nine hundred forty-nine thousand, seven hundred sixty-one".