540354637765431 has 8 divisors (see below), whose sum is σ = 800525389282160. Its totient is φ = 360236425176936.

The previous prime is 540354637765421. The next prime is 540354637765447. The reversal of 540354637765431 is 134567736453045.

540354637765431 is a `hidden beast` number, since 5 + 4 + 0 + 3 + 5 + 463 + 77 + 65 + 43 + 1 = 666.

It is not a de Polignac number, because 540354637765431 - 2⁷ = 540354637765303 is a prime.

It is a super-2 number, since 2×540354637765431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540354637765421) 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, 10006567366000 + ... + 10006567366053.

It is an arithmetic number, because the mean of its divisors is an integer number (100065673660270).

Almost surely, 2^{540354637765431} is an apocalyptic number.

540354637765431 is a deficient number, since it is larger than the sum of its proper divisors (260170751516729).

540354637765431 is a wasteful number, since it uses less digits than its factorization.

540354637765431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20013134732062 (or 20013134732056 counting only the distinct ones).

The product of its (nonzero) digits is 381024000, while the sum is 63.

The spelling of 540354637765431 in words is "five hundred forty trillion, three hundred fifty-four billion, six hundred thirty-seven million, seven hundred sixty-five thousand, four hundred thirty-one".