6161811049 has 2 divisors, whose sum is σ = 6161811050. Its totient is φ = 6161811048.

The previous prime is 6161811037. The next prime is 6161811091. The reversal of 6161811049 is 9401181616.

6161811049 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6128541225 + 33269824 = 78285^2 + 5768^2 .

It is a cyclic number.

It is not a de Polignac number, because 6161811049 - 2⁹ = 6161810537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6161810999 and 6161811017.

It is not a weakly prime, because it can be changed into another prime (6161811349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3080905524 + 3080905525.

It is an arithmetic number, because the mean of its divisors is an integer number (3080905525).

Almost surely, 2^6161811049 is an apocalyptic number.

It is an amenable number.

6161811049 is a deficient number, since it is larger than the sum of its proper divisors (1).

6161811049 is an equidigital number, since it uses as much as digits as its factorization.

6161811049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 6161811049 is about 78497.2040839672. The cubic root of 6161811049 is about 1833.3109210226.

It can be divided in two parts, 6 and 161811049, that added together give a triangular number (161811055 = T₁₇₉₈₉).

The spelling of 6161811049 in words is "six billion, one hundred sixty-one million, eight hundred eleven thousand, forty-nine".