539387735040 has 2640 divisors, whose sum is σ = 2602259066880. Its totient is φ = 105345515520.

The previous prime is 539387735039. The next prime is 539387735087. The reversal of 539387735040 is 40537783935.

539387735040 is a `hidden beast` number, since 5 + 39 + 38 + 7 + 73 + 504 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2640).

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

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 4247147457 + ... + 4247147583.

It is an arithmetic number, because the mean of its divisors is an integer number (985704192).

Almost surely, 2^539387735040 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 539387735040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1301129533440).

539387735040 is an abundant number, since it is smaller than the sum of its proper divisors (2062871331840).

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

539387735040 is a wasteful number, since it uses less digits than its factorization.

539387735040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 54.

The spelling of 539387735040 in words is "five hundred thirty-nine billion, three hundred eighty-seven million, seven hundred thirty-five thousand, forty".