6342520869 has 6 divisors (see below), whose sum is σ = 9161419046. Its totient is φ = 4228347240.

The previous prime is 6342520867. The next prime is 6342520879. The reversal of 6342520869 is 9680252436.

6342520869 is a `hidden beast` number, since 6 + 3 + 42 + 520 + 86 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5174931969 + 1167588900 = 71937^2 + 34170^2 .

It is not a de Polignac number, because 6342520869 - 2¹ = 6342520867 is a prime.

It is a super-2 number, since 2×6342520869² = 80455141947401030322, which 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 (6342520867) 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, 352362262 + ... + 352362279.

Almost surely, 2^6342520869 is an apocalyptic number.

It is an amenable number.

6342520869 is a deficient number, since it is larger than the sum of its proper divisors (2818898177).

6342520869 is a wasteful number, since it uses less digits than its factorization.

6342520869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704724547 (or 704724544 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 6342520869 is about 79639.9451845617. The cubic root of 6342520869 is about 1851.0605916595.

The spelling of 6342520869 in words is "six billion, three hundred forty-two million, five hundred twenty thousand, eight hundred sixty-nine".