539701081920 has 3360 divisors, whose sum is σ = 2724906928128. Its totient is φ = 98537472000.

The previous prime is 539701081879. The next prime is 539701081987. The reversal of 539701081920 is 29180107935.

539701081920 is a `hidden beast` number, since 539 + 7 + 0 + 10 + 81 + 9 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (3360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 8847558690 + ... + 8847558750.

Almost surely, 2^539701081920 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 539701081920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1362453464064).

539701081920 is an abundant number, since it is smaller than the sum of its proper divisors (2185205846208).

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

539701081920 is a wasteful number, since it uses less digits than its factorization.

539701081920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 539701081920 in words is "five hundred thirty-nine billion, seven hundred one million, eighty-one thousand, nine hundred twenty".