540140519393 has 24 divisors (see below), whose sum is σ = 587105633400. Its totient is φ = 496675307520.

The previous prime is 540140519377. The next prime is 540140519417. The reversal of 540140519393 is 393915041045.

It can be written as a sum of positive squares in 12 ways, for example, as 285430542049 + 254709977344 = 534257^2 + 504688^2 .

It is not a de Polignac number, because 540140519393 - 2⁴ = 540140519377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540140519693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2523905 + ... + 2729537.

It is an arithmetic number, because the mean of its divisors is an integer number (24462734725).

Almost surely, 2^540140519393 is an apocalyptic number.

It is an amenable number.

540140519393 is a deficient number, since it is larger than the sum of its proper divisors (46965114007).

540140519393 is a wasteful number, since it uses less digits than its factorization.

540140519393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205877 (or 205860 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 44.

The spelling of 540140519393 in words is "five hundred forty billion, one hundred forty million, five hundred nineteen thousand, three hundred ninety-three".