43987469879808 has 2560 divisors, whose sum is σ = 175337577676800. Its totient is φ = 10560605257728.

The previous prime is 43987469879737. The next prime is 43987469879819. The reversal of 43987469879808 is 80897896478934.

43987469879808 is a `hidden beast` number, since 4 + 398 + 7 + 4 + 69 + 87 + 9 + 80 + 8 = 666.

It is a super-3 number, since 3×43987469879808³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 107548825908 + ... + 107548826316.

It is an arithmetic number, because the mean of its divisors is an integer number (68491241280).

Almost surely, 2^{43987469879808} is an apocalyptic number.

43987469879808 is a gapful number since it is divisible by the number (48) 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 43987469879808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87668788838400).

43987469879808 is an abundant number, since it is smaller than the sum of its proper divisors (131350107796992).

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

43987469879808 is a wasteful number, since it uses less digits than its factorization.

43987469879808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 42138206208, while the sum is 90.

The spelling of 43987469879808 in words is "forty-three trillion, nine hundred eighty-seven billion, four hundred sixty-nine million, eight hundred seventy-nine thousand, eight hundred eight".