4427526661 has 4 divisors (see below), whose sum is σ = 4660554400. Its totient is φ = 4194498924.

The previous prime is 4427526659. The next prime is 4427526679. The reversal of 4427526661 is 1666257244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4427526661 - 2¹ = 4427526659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4427526601) 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, 116513841 + ... + 116513878.

It is an arithmetic number, because the mean of its divisors is an integer number (1165138600).

Almost surely, 2^4427526661 is an apocalyptic number.

It is an amenable number.

4427526661 is a deficient number, since it is larger than the sum of its proper divisors (233027739).

4427526661 is a wasteful number, since it uses less digits than its factorization.

4427526661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233027738.

The product of its digits is 483840, while the sum is 43.

The square root of 4427526661 is about 66539.6623150433. The cubic root of 4427526661 is about 1642.0525882175.

The spelling of 4427526661 in words is "four billion, four hundred twenty-seven million, five hundred twenty-six thousand, six hundred sixty-one".