540751388164 has 27 divisors (see below), whose sum is σ = 1024744113813. Its totient is φ = 249568739472.

The previous prime is 540751388161. The next prime is 540751388173. The reversal of 540751388164 is 461883157045.

The square root of 540751388164 is 735358.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 79992808900 + 460758579264 = 282830^2 + 678792^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540751388161) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19105167 + ... + 19133449.

Almost surely, 2^540751388164 is an apocalyptic number.

540751388164 is the 735358-th square number.

It is an amenable number.

540751388164 is a deficient number, since it is larger than the sum of its proper divisors (483992725649).

540751388164 is an frugal number, since it uses more digits than its factorization.

540751388164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56596 (or 28298 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 540751388164 in words is "five hundred forty billion, seven hundred fifty-one million, three hundred eighty-eight thousand, one hundred sixty-four".