68543040132 has 576 divisors, whose sum is σ = 228953088000. Its totient is φ = 17487042048.

The previous prime is 68543040131. The next prime is 68543040133. The reversal of 68543040132 is 23104034586.

68543040132 is a `hidden beast` number, since 68 + 543 + 0 + 40 + 13 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (68543040131) and next prime (68543040133).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (68543040131) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 176202994 + ... + 176203382.

It is an arithmetic number, because the mean of its divisors is an integer number (397488000).

Almost surely, 2^68543040132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68543040132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114476544000).

68543040132 is an abundant number, since it is smaller than the sum of its proper divisors (160410047868).

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

68543040132 is a wasteful number, since it uses less digits than its factorization.

68543040132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 68543040132 in words is "sixty-eight billion, five hundred forty-three million, forty thousand, one hundred thirty-two".