5661078586 has 4 divisors (see below), whose sum is σ = 8491617882. Its totient is φ = 2830539292.

The previous prime is 5661078529. The next prime is 5661078589. The reversal of 5661078586 is 6858701665.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5109533361 + 551545225 = 71481^2 + 23485^2 .

It is not an unprimeable number, because it can be changed into a prime (5661078589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1415269645 + ... + 1415269648.

Almost surely, 2^5661078586 is an apocalyptic number.

5661078586 is a deficient number, since it is larger than the sum of its proper divisors (2830539296).

5661078586 is a wasteful number, since it uses less digits than its factorization.

5661078586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830539295.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The square root of 5661078586 is about 75240.1394602642. The cubic root of 5661078586 is about 1782.2408534636.

The spelling of 5661078586 in words is "five billion, six hundred sixty-one million, seventy-eight thousand, five hundred eighty-six".