540943545231 has 24 divisors (see below), whose sum is σ = 840888148464. Its totient is φ = 333851362560.

The previous prime is 540943545227. The next prime is 540943545239. The reversal of 540943545231 is 132545349045.

540943545231 is a `hidden beast` number, since 5 + 4 + 0 + 94 + 35 + 4 + 523 + 1 = 666.

It is not a de Polignac number, because 540943545231 - 2² = 540943545227 is a prime.

It is a super-2 number, since 2×540943545231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540943545239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28970821 + ... + 28989486.

It is an arithmetic number, because the mean of its divisors is an integer number (35037006186).

Almost surely, 2^540943545231 is an apocalyptic number.

540943545231 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

540943545231 is a deficient number, since it is larger than the sum of its proper divisors (299944603233).

540943545231 is a wasteful number, since it uses less digits than its factorization.

540943545231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57960391 (or 57960388 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 540943545231 in words is "five hundred forty billion, nine hundred forty-three million, five hundred forty-five thousand, two hundred thirty-one".