5678914561 has 4 divisors (see below), whose sum is σ = 5697058372. Its totient is φ = 5660770752.

The previous prime is 5678914559. The next prime is 5678914597. The reversal of 5678914561 is 1654198765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1654198765 = 5 ⋅330839753.

It can be written as a sum of positive squares in 2 ways, for example, as 1795132161 + 3883782400 = 42369^2 + 62320^2 .

It is a cyclic number.

It is not a de Polignac number, because 5678914561 - 2¹ = 5678914559 is a prime.

It is a super-2 number, since 2×5678914561² = 64500141182275645442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5678914499 and 5678914508.

It is not an unprimeable number, because it can be changed into a prime (5678914511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9071436 + ... + 9072061.

It is an arithmetic number, because the mean of its divisors is an integer number (1424264593).

Almost surely, 2^5678914561 is an apocalyptic number.

It is an amenable number.

5678914561 is a deficient number, since it is larger than the sum of its proper divisors (18143811).

5678914561 is a wasteful number, since it uses less digits than its factorization.

5678914561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18143810.

The product of its digits is 1814400, while the sum is 52.

The square root of 5678914561 is about 75358.5732415364. The cubic root of 5678914561 is about 1784.1106195065.

The spelling of 5678914561 in words is "five billion, six hundred seventy-eight million, nine hundred fourteen thousand, five hundred sixty-one".