540064361988 has 36 divisors (see below), whose sum is σ = 1369986615088. Its totient is φ = 179385332400.

The previous prime is 540064361987. The next prime is 540064361989. The reversal of 540064361988 is 889163460045.

540064361988 is a `hidden beast` number, since 5 + 400 + 6 + 43 + 6 + 198 + 8 = 666.

540064361988 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (540064361987) and next prime (540064361989).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (540064361987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26494738 + ... + 26515113.

Almost surely, 2^540064361988 is an apocalyptic number.

It is an amenable number.

540064361988 is an abundant number, since it is smaller than the sum of its proper divisors (829922253100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

540064361988 is a wasteful number, since it uses less digits than its factorization.

540064361988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53010144 (or 53010139 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 540064361988 in words is "five hundred forty billion, sixty-four million, three hundred sixty-one thousand, nine hundred eighty-eight".