5691478564 has 12 divisors (see below), whose sum is σ = 10148014044. Its totient is φ = 2792045984.

The previous prime is 5691478537. The next prime is 5691478609. The reversal of 5691478564 is 4658741965.

It can be written as a sum of positive squares in 2 ways, for example, as 4536022500 + 1155456064 = 67350^2 + 33992^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13423087 + ... + 13423510.

It is an arithmetic number, because the mean of its divisors is an integer number (845667837).

Almost surely, 2^5691478564 is an apocalyptic number.

It is an amenable number.

5691478564 is a deficient number, since it is larger than the sum of its proper divisors (4456535480).

5691478564 is a wasteful number, since it uses less digits than its factorization.

5691478564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26846654 (or 26846652 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 55.

The square root of 5691478564 is about 75441.8886561040. Note that the first 3 decimals coincide. The cubic root of 5691478564 is about 1785.4253696242.

The spelling of 5691478564 in words is "five billion, six hundred ninety-one million, four hundred seventy-eight thousand, five hundred sixty-four".