53777852138 has 8 divisors (see below), whose sum is σ = 81771802788. Its totient is φ = 26520584544.

The previous prime is 53777852059. The next prime is 53777852231. The reversal of 53777852138 is 83125877735.

53777852138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 52529431249 + 1248420889 = 229193^2 + 35333^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184170581 + ... + 184170872.

Almost surely, 2^53777852138 is an apocalyptic number.

53777852138 is a deficient number, since it is larger than the sum of its proper divisors (27993950650).

53777852138 is a wasteful number, since it uses less digits than its factorization.

53777852138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368341528.

The product of its digits is 9878400, while the sum is 56.

The spelling of 53777852138 in words is "fifty-three billion, seven hundred seventy-seven million, eight hundred fifty-two thousand, one hundred thirty-eight".