53817979768351 has 4 divisors (see below), whose sum is σ = 53818006346352. Its totient is φ = 53817953190352.

The previous prime is 53817979768313. The next prime is 53817979768409. The reversal of 53817979768351 is 15386797971835.

53817979768351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53817979768351 - 2¹¹ = 53817979766303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53817979768451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9976390 + ... + 14393203.

It is an arithmetic number, because the mean of its divisors is an integer number (13454501586588).

Almost surely, 2^{53817979768351} is an apocalyptic number.

53817979768351 is the 4639741-st centered pentagonal number.

53817979768351 is a deficient number, since it is larger than the sum of its proper divisors (26578001).

53817979768351 is a wasteful number, since it uses less digits than its factorization.

53817979768351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26578000.

The product of its digits is 2400451200, while the sum is 79.

The spelling of 53817979768351 in words is "fifty-three trillion, eight hundred seventeen billion, nine hundred seventy-nine million, seven hundred sixty-eight thousand, three hundred fifty-one".