5042393665 has 4 divisors (see below), whose sum is σ = 6050872404. Its totient is φ = 4033914928.

The previous prime is 5042393639. The next prime is 5042393677. The reversal of 5042393665 is 5663932405.

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 3255387136 + 1787006529 = 57056^2 + 42273^2 .

It is a cyclic number.

It is not a de Polignac number, because 5042393665 - 2³¹ = 2894910017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504239362 + ... + 504239371.

It is an arithmetic number, because the mean of its divisors is an integer number (1512718101).

Almost surely, 2^5042393665 is an apocalyptic number.

It is an amenable number.

5042393665 is a deficient number, since it is larger than the sum of its proper divisors (1008478739).

5042393665 is a wasteful number, since it uses less digits than its factorization.

5042393665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008478738.

The product of its (nonzero) digits is 583200, while the sum is 43.

The square root of 5042393665 is about 71009.8138640005. The cubic root of 5042393665 is about 1714.7951617814.

The spelling of 5042393665 in words is "five billion, forty-two million, three hundred ninety-three thousand, six hundred sixty-five".