540689891280 has 320 divisors, whose sum is σ = 2134197116928. Its totient is φ = 109960519680.

The previous prime is 540689891221. The next prime is 540689891293. The reversal of 540689891280 is 82198986045.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 557304 + ... + 1179816.

Almost surely, 2^540689891280 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 540689891280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1067098558464).

540689891280 is an abundant number, since it is smaller than the sum of its proper divisors (1593507225648).

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

540689891280 is a wasteful number, since it uses less digits than its factorization.

540689891280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622594 (or 622588 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 60.

The spelling of 540689891280 in words is "five hundred forty billion, six hundred eighty-nine million, eight hundred ninety-one thousand, two hundred eighty".