6909309874149 has 16 divisors (see below), whose sum is σ = 9961858545408. Its totient is φ = 4243013821952.

The previous prime is 6909309874073. The next prime is 6909309874153. The reversal of 6909309874149 is 9414789039096.

It is a cyclic number.

It is not a de Polignac number, because 6909309874149 - 2¹³ = 6909309865957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6909309874169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1441238712 + ... + 1441243505.

It is an arithmetic number, because the mean of its divisors is an integer number (622616159088).

Almost surely, 2^{6909309874149} is an apocalyptic number.

It is an amenable number.

6909309874149 is a deficient number, since it is larger than the sum of its proper divisors (3052548671259).

6909309874149 is a wasteful number, since it uses less digits than its factorization.

6909309874149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882482284.

The product of its (nonzero) digits is 105815808, while the sum is 69.

The spelling of 6909309874149 in words is "six trillion, nine hundred nine billion, three hundred nine million, eight hundred seventy-four thousand, one hundred forty-nine".