8749345669 has 16 divisors (see below), whose sum is σ = 8945579520. Its totient is φ = 8555564160.

The previous prime is 8749345607. The next prime is 8749345673. The reversal of 8749345669 is 9665439478.

It is a cyclic number.

It is not a de Polignac number, because 8749345669 - 2¹³ = 8749337477 is a prime.

It is a super-2 number, since 2×8749345669² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8749345679) 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, 7153392 + ... + 7154614.

It is an arithmetic number, because the mean of its divisors is an integer number (559098720).

Almost surely, 2^8749345669 is an apocalyptic number.

It is an amenable number.

8749345669 is a deficient number, since it is larger than the sum of its proper divisors (196233851).

8749345669 is a wasteful number, since it uses less digits than its factorization.

8749345669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100.

The product of its digits is 39191040, while the sum is 61.

The square root of 8749345669 is about 93537.9370576452. The cubic root of 8749345669 is about 2060.5912832004.

The spelling of 8749345669 in words is "eight billion, seven hundred forty-nine million, three hundred forty-five thousand, six hundred sixty-nine".