539615129472 has 384 divisors, whose sum is σ = 1685973463200. Its totient is φ = 169885900800.

The previous prime is 539615129467. The next prime is 539615129477. The reversal of 539615129472 is 274921516935.

539615129472 is a `hidden beast` number, since 5 + 3 + 9 + 615 + 12 + 9 + 4 + 7 + 2 = 666.

539615129472 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 (539615129467) and next prime (539615129477).

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539615129477) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 769778722 + ... + 769779422.

Almost surely, 2^539615129472 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 539615129472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842986731600).

539615129472 is an abundant number, since it is smaller than the sum of its proper divisors (1146358333728).

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

539615129472 is a wasteful number, since it uses less digits than its factorization.

539615129472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379 (or 1342 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 54.

The spelling of 539615129472 in words is "five hundred thirty-nine billion, six hundred fifteen million, one hundred twenty-nine thousand, four hundred seventy-two".