540518243371 has 4 divisors (see below), whose sum is σ = 542838064392. Its totient is φ = 538198422352.

The previous prime is 540518243339. The next prime is 540518243407. The reversal of 540518243371 is 173342815045.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 540518243371 - 2⁵ = 540518243339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540518241371) 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, 1159910161 + ... + 1159910626.

It is an arithmetic number, because the mean of its divisors is an integer number (135709516098).

Almost surely, 2^540518243371 is an apocalyptic number.

540518243371 is a deficient number, since it is larger than the sum of its proper divisors (2319821021).

540518243371 is a wasteful number, since it uses less digits than its factorization.

540518243371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319821020.

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 540518243371 in words is "five hundred forty billion, five hundred eighteen million, two hundred forty-three thousand, three hundred seventy-one".