43741281158640 has 1280 divisors, whose sum is σ = 172891434240000. Its totient is φ = 10075904409600.

The previous prime is 43741281158587. The next prime is 43741281158657. The reversal of 43741281158640 is 4685118214734.

It is a happy number.

43741281158640 is a `hidden beast` number, since 4 + 3 + 7 + 4 + 1 + 2 + 8 + 11 + 586 + 40 = 666.

43741281158640 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 15342433215 + ... + 15342436065.

It is an arithmetic number, because the mean of its divisors is an integer number (135071433000).

Almost surely, 2^{43741281158640} is an apocalyptic number.

43741281158640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43741281158640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86445717120000).

43741281158640 is an abundant number, since it is smaller than the sum of its proper divisors (129150153081360).

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

43741281158640 is a wasteful number, since it uses less digits than its factorization.

43741281158640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3247 (or 3235 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 43741281158640 in words is "forty-three trillion, seven hundred forty-one billion, two hundred eighty-one million, one hundred fifty-eight thousand, six hundred forty".