539194582081 has 4 divisors (see below), whose sum is σ = 539224683952. Its totient is φ = 539164480212.

The previous prime is 539194582079. The next prime is 539194582117. The reversal of 539194582081 is 180285491935.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 539194582081 - 2¹ = 539194582079 is a prime.

It is a super-2 number, since 2×539194582081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (539194582061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15024051 + ... + 15059896.

It is an arithmetic number, because the mean of its divisors is an integer number (134806170988).

Almost surely, 2^539194582081 is an apocalyptic number.

It is an amenable number.

539194582081 is a deficient number, since it is larger than the sum of its proper divisors (30101871).

539194582081 is a wasteful number, since it uses less digits than its factorization.

539194582081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30101870.

The product of its (nonzero) digits is 3110400, while the sum is 55.

The spelling of 539194582081 in words is "five hundred thirty-nine billion, one hundred ninety-four million, five hundred eighty-two thousand, eighty-one".