539732431872 has 396 divisors, whose sum is σ = 1635452451360. Its totient is φ = 171409588224.

The previous prime is 539732431867. The next prime is 539732431933. The reversal of 539732431872 is 278134237935.

It is a happy number.

539732431872 is a `hidden beast` number, since 5 + 397 + 3 + 243 + 1 + 8 + 7 + 2 = 666.

It is a super-2 number, since 2×539732431872² (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 35 ways as a sum of consecutive naturals, for example, 643304029 + ... + 643304867.

Almost surely, 2^539732431872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 539732431872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (817726225680).

539732431872 is an abundant number, since it is smaller than the sum of its proper divisors (1095720019488).

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

539732431872 is a wasteful number, since it uses less digits than its factorization.

539732431872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006 (or 956 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The spelling of 539732431872 in words is "five hundred thirty-nine billion, seven hundred thirty-two million, four hundred thirty-one thousand, eight hundred seventy-two".