5670491909 has 2 divisors, whose sum is σ = 5670491910. Its totient is φ = 5670491908.

The previous prime is 5670491867. The next prime is 5670491951. The reversal of 5670491909 is 9091940765.

It is a balanced prime because it is at equal distance from previous prime (5670491867) and next prime (5670491951).

It can be written as a sum of positive squares in only one way, i.e., 4857671809 + 812820100 = 69697^2 + 28510^2 .

It is a cyclic number.

It is not a de Polignac number, because 5670491909 - 2²⁰ = 5669443333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5670491989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2835245954 + 2835245955.

It is an arithmetic number, because the mean of its divisors is an integer number (2835245955).

Almost surely, 2^5670491909 is an apocalyptic number.

It is an amenable number.

5670491909 is a deficient number, since it is larger than the sum of its proper divisors (1).

5670491909 is an equidigital number, since it uses as much as digits as its factorization.

5670491909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 5670491909 is about 75302.6686711699. The cubic root of 5670491909 is about 1783.2281516870.

The spelling of 5670491909 in words is "five billion, six hundred seventy million, four hundred ninety-one thousand, nine hundred nine".