53442135779 has 8 divisors (see below), whose sum is σ = 53878539552. Its totient is φ = 53006817600.

The previous prime is 53442135713. The next prime is 53442135809. The reversal of 53442135779 is 97753124435.

53442135779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53442135779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53442135709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172394 + ... + 369599.

It is an arithmetic number, because the mean of its divisors is an integer number (6734817444).

Almost surely, 2^53442135779 is an apocalyptic number.

53442135779 is a deficient number, since it is larger than the sum of its proper divisors (436403773).

53442135779 is a wasteful number, since it uses less digits than its factorization.

53442135779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542797.

The product of its digits is 3175200, while the sum is 50.

The spelling of 53442135779 in words is "fifty-three billion, four hundred forty-two million, one hundred thirty-five thousand, seven hundred seventy-nine".