3509450274069 has 6 divisors (see below), whose sum is σ = 5069205951446. Its totient is φ = 2339633516040.

The previous prime is 3509450274061. The next prime is 3509450274073. The reversal of 3509450274069 is 9604720549053.

3509450274069 is a `hidden beast` number, since 3 + 5 + 0 + 9 + 4 + 502 + 74 + 0 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2636417927025 + 873032347044 = 1623705^2 + 934362^2 .

It is not a de Polignac number, because 3509450274069 - 2³ = 3509450274061 is a prime.

It is a super-2 number, since 2×3509450274069² (a number of 26 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 (3509450274061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194969459662 + ... + 194969459679.

Almost surely, 2^{3509450274069} is an apocalyptic number.

It is an amenable number.

3509450274069 is a deficient number, since it is larger than the sum of its proper divisors (1559755677377).

3509450274069 is a wasteful number, since it uses less digits than its factorization.

3509450274069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389938919347 (or 389938919344 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 54.

The spelling of 3509450274069 in words is "three trillion, five hundred nine billion, four hundred fifty million, two hundred seventy-four thousand, sixty-nine".