540523621172 has 12 divisors (see below), whose sum is σ = 961948817760. Its totient is φ = 265681101816.

The previous prime is 540523621151. The next prime is 540523621177. The reversal of 540523621172 is 271126325045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540523621177) 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, 1145176928 + ... + 1145177399.

It is an arithmetic number, because the mean of its divisors is an integer number (80162401480).

Almost surely, 2^540523621172 is an apocalyptic number.

It is an amenable number.

540523621172 is a deficient number, since it is larger than the sum of its proper divisors (421425196588).

540523621172 is a wasteful number, since it uses less digits than its factorization.

540523621172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290354390 (or 2290354388 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 540523621172 in words is "five hundred forty billion, five hundred twenty-three million, six hundred twenty-one thousand, one hundred seventy-two".