539144334381 has 16 divisors (see below), whose sum is σ = 756729021440. Its totient is φ = 340496362800.

The previous prime is 539144334361. The next prime is 539144334401. The reversal of 539144334381 is 183433441935.

539144334381 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (539144334361) and next prime (539144334401).

It is not a de Polignac number, because 539144334381 - 2¹⁴ = 539144317997 is a prime.

It is a super-2 number, since 2×539144334381² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 539144334381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539144334361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1082316 + ... + 1499898.

It is an arithmetic number, because the mean of its divisors is an integer number (47295563840).

Almost surely, 2^539144334381 is an apocalyptic number.

It is an amenable number.

539144334381 is a deficient number, since it is larger than the sum of its proper divisors (217584687059).

539144334381 is a wasteful number, since it uses less digits than its factorization.

539144334381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440256.

The product of its digits is 1866240, while the sum is 48.

The spelling of 539144334381 in words is "five hundred thirty-nine billion, one hundred forty-four million, three hundred thirty-four thousand, three hundred eighty-one".