6109894649 has 2 divisors, whose sum is σ = 6109894650. Its totient is φ = 6109894648.

The previous prime is 6109894631. The next prime is 6109894669. The reversal of 6109894649 is 9464989016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5131143424 + 978751225 = 71632^2 + 31285^2 .

It is a cyclic number.

It is not a de Polignac number, because 6109894649 - 2³² = 1814927353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6109894594 and 6109894603.

It is not a weakly prime, because it can be changed into another prime (6109894669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3054947324 + 3054947325.

It is an arithmetic number, because the mean of its divisors is an integer number (3054947325).

Almost surely, 2^6109894649 is an apocalyptic number.

It is an amenable number.

6109894649 is a deficient number, since it is larger than the sum of its proper divisors (1).

6109894649 is an equidigital number, since it uses as much as digits as its factorization.

6109894649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The square root of 6109894649 is about 78165.8150920209. The cubic root of 6109894649 is about 1828.1475325906.

The spelling of 6109894649 in words is "six billion, one hundred nine million, eight hundred ninety-four thousand, six hundred forty-nine".