540481181685 has 64 divisors (see below), whose sum is σ = 905368140288. Its totient is φ = 275031604224.

The previous prime is 540481181671. The next prime is 540481181711. The reversal of 540481181685 is 586181184045.

It is a happy number.

It is not a de Polignac number, because 540481181685 - 2⁷ = 540481181557 is a prime.

It is a super-2 number, since 2×540481181685² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 79211184 + ... + 79218006.

It is an arithmetic number, because the mean of its divisors is an integer number (14146377192).

Almost surely, 2^540481181685 is an apocalyptic number.

It is an amenable number.

540481181685 is a deficient number, since it is larger than the sum of its proper divisors (364886958603).

540481181685 is a wasteful number, since it uses less digits than its factorization.

540481181685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9614.

The product of its (nonzero) digits is 1228800, while the sum is 51.

The spelling of 540481181685 in words is "five hundred forty billion, four hundred eighty-one million, one hundred eighty-one thousand, six hundred eighty-five".