5427804665 has 4 divisors (see below), whose sum is σ = 6513365604. Its totient is φ = 4342243728.

The previous prime is 5427804619. The next prime is 5427804673. The reversal of 5427804665 is 5664087245.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1988803216 + 3439001449 = 44596^2 + 58643^2 .

It is a cyclic number.

It is not a de Polignac number, because 5427804665 - 2⁸ = 5427804409 is a prime.

It is a super-2 number, since 2×5427804665² = 58922126962791524450, which contains 22 as substring.

It is a Duffinian number.

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, 542780462 + ... + 542780471.

It is an arithmetic number, because the mean of its divisors is an integer number (1628341401).

Almost surely, 2^5427804665 is an apocalyptic number.

It is an amenable number.

5427804665 is a deficient number, since it is larger than the sum of its proper divisors (1085560939).

5427804665 is a wasteful number, since it uses less digits than its factorization.

5427804665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085560938.

The product of its (nonzero) digits is 1612800, while the sum is 47.

The square root of 5427804665 is about 73673.6361597553. The cubic root of 5427804665 is about 1757.4166499999.

The spelling of 5427804665 in words is "five billion, four hundred twenty-seven million, eight hundred four thousand, six hundred sixty-five".