540028866881 has 4 divisors (see below), whose sum is σ = 617175847872. Its totient is φ = 462881885892.

The previous prime is 540028866863. The next prime is 540028866887. The reversal of 540028866881 is 188668820045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540028866881 is a prime.

It is a super-2 number, since 2×540028866881² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540028866887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38573490485 + ... + 38573490498.

It is an arithmetic number, because the mean of its divisors is an integer number (154293961968).

Almost surely, 2^540028866881 is an apocalyptic number.

It is an amenable number.

540028866881 is a deficient number, since it is larger than the sum of its proper divisors (77146980991).

540028866881 is an equidigital number, since it uses as much as digits as its factorization.

540028866881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77146980990.

The product of its (nonzero) digits is 5898240, while the sum is 56.

The spelling of 540028866881 in words is "five hundred forty billion, twenty-eight million, eight hundred sixty-six thousand, eight hundred eighty-one".