5511434578 has 16 divisors (see below), whose sum is σ = 9426798360. Its totient is φ = 2394107136.

The previous prime is 5511434563. The next prime is 5511434581. The reversal of 5511434578 is 8754341155.

It can be written as a sum of positive squares in 4 ways, for example, as 4384691089 + 1126743489 = 66217^2 + 33567^2 .

It is a super-2 number, since 2×5511434578² = 60751822215148076168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6234213 + ... + 6235096.

Almost surely, 2^5511434578 is an apocalyptic number.

5511434578 is a deficient number, since it is larger than the sum of its proper divisors (3915363782).

5511434578 is a wasteful number, since it uses less digits than its factorization.

5511434578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12469341.

The product of its digits is 336000, while the sum is 43.

The square root of 5511434578 is about 74239.0367529105. The cubic root of 5511434578 is about 1766.3965949488.

The spelling of 5511434578 in words is "five billion, five hundred eleven million, four hundred thirty-four thousand, five hundred seventy-eight".