540356512820 has 18 divisors (see below), whose sum is σ = 1134755580546. Its totient is φ = 216141290160.

The previous prime is 540356512819. The next prime is 540356512831. The reversal of 540356512820 is 28215653045.

It can be written as a sum of positive squares in only one way, i.e., 432285210256 + 108071302564 = 657484^2 + 328742^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3205235 + ... + 3369605.

It is an arithmetic number, because the mean of its divisors is an integer number (63041976697).

Almost surely, 2^540356512820 is an apocalyptic number.

It is an amenable number.

540356512820 is an abundant number, since it is smaller than the sum of its proper divisors (594399067726).

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

540356512820 is an frugal number, since it uses more digits than its factorization.

540356512820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328751 (or 164378 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 540356512820 in words is "five hundred forty billion, three hundred fifty-six million, five hundred twelve thousand, eight hundred twenty".