52609979779 has 8 divisors (see below), whose sum is σ = 60130928480. Its totient is φ = 45090340416.

The previous prime is 52609979749. The next prime is 52609979819. The reversal of 52609979779 is 97797990625.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52609979779 - 2¹¹ = 52609977731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52609979749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239664 + ... + 403309.

It is an arithmetic number, because the mean of its divisors is an integer number (7516366060).

Almost surely, 2^52609979779 is an apocalyptic number.

52609979779 is a deficient number, since it is larger than the sum of its proper divisors (7520948701).

52609979779 is a wasteful number, since it uses less digits than its factorization.

52609979779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654669.

The product of its (nonzero) digits is 135025380, while the sum is 70.

The spelling of 52609979779 in words is "fifty-two billion, six hundred nine million, nine hundred seventy-nine thousand, seven hundred seventy-nine".