5240665878 has 32 divisors (see below), whose sum is σ = 12365076480. Its totient is φ = 1449031680.

The previous prime is 5240665867. The next prime is 5240665883. The reversal of 5240665878 is 8785660425.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 5240665878.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2011243 + ... + 2013846.

It is an arithmetic number, because the mean of its divisors is an integer number (386408640).

Almost surely, 2^5240665878 is an apocalyptic number.

5240665878 is an abundant number, since it is smaller than the sum of its proper divisors (7124410602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5240665878 is a wasteful number, since it uses less digits than its factorization.

5240665878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4025132.

The product of its (nonzero) digits is 3225600, while the sum is 51.

The square root of 5240665878 is about 72392.4435144995. The cubic root of 5240665878 is about 1736.9826905551.

The spelling of 5240665878 in words is "five billion, two hundred forty million, six hundred sixty-five thousand, eight hundred seventy-eight".