540231918851 has 2 divisors, whose sum is σ = 540231918852. Its totient is φ = 540231918850.

The previous prime is 540231918847. The next prime is 540231918881. The reversal of 540231918851 is 158819132045.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540231918851 - 2² = 540231918847 is a prime.

It is a super-2 number, since 2×540231918851² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 540231918796 and 540231918805.

It is not a weakly prime, because it can be changed into another prime (540231918881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270115959425 + 270115959426.

It is an arithmetic number, because the mean of its divisors is an integer number (270115959426).

Almost surely, 2^540231918851 is an apocalyptic number.

540231918851 is a deficient number, since it is larger than the sum of its proper divisors (1).

540231918851 is an equidigital number, since it uses as much as digits as its factorization.

540231918851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 47.

The spelling of 540231918851 in words is "five hundred forty billion, two hundred thirty-one million, nine hundred eighteen thousand, eight hundred fifty-one".