539559974128 has 40 divisors (see below), whose sum is σ = 1194800572512. Its totient is φ = 231228254208.

The previous prime is 539559974117. The next prime is 539559974171. The reversal of 539559974128 is 821479955935.

It is a super-2 number, since 2×539559974128² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2309676 + ... + 2532532.

Almost surely, 2^539559974128 is an apocalyptic number.

It is an amenable number.

539559974128 is an abundant number, since it is smaller than the sum of its proper divisors (655240598384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

539559974128 is a wasteful number, since it uses less digits than its factorization.

539559974128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244489 (or 244483 counting only the distinct ones).

The product of its digits is 122472000, while the sum is 67.

The spelling of 539559974128 in words is "five hundred thirty-nine billion, five hundred fifty-nine million, nine hundred seventy-four thousand, one hundred twenty-eight".