540781863 has 8 divisors (see below), whose sum is σ = 726230400. Its totient is φ = 357927288.

The previous prime is 540781861. The next prime is 540781877. The reversal of 540781863 is 368187045.

540781863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 540781863 - 2¹ = 540781861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540781861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648003 + ... + 648836.

It is an arithmetic number, because the mean of its divisors is an integer number (90778800).

Almost surely, 2^540781863 is an apocalyptic number.

540781863 is a deficient number, since it is larger than the sum of its proper divisors (185448537).

540781863 is a wasteful number, since it uses less digits than its factorization.

540781863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296981.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 540781863 is about 23254.7170053733. The cubic root of 540781863 is about 814.7181144662.

The spelling of 540781863 in words is "five hundred forty million, seven hundred eighty-one thousand, eight hundred sixty-three".