43276420881 has 28 divisors (see below), whose sum is σ = 65984759760. Its totient is φ = 28361919960.

The previous prime is 43276420877. The next prime is 43276420883. The reversal of 43276420881 is 18802467234.

It is a happy number.

43276420881 is a `hidden beast` number, since 432 + 7 + 6 + 4 + 208 + 8 + 1 = 666.

It is not a de Polignac number, because 43276420881 - 2² = 43276420877 is a prime.

It is a super-3 number, since 3×43276420881³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (43276420883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 460075 + ... + 546096.

Almost surely, 2^43276420881 is an apocalyptic number.

It is an amenable number.

43276420881 is a deficient number, since it is larger than the sum of its proper divisors (22708338879).

43276420881 is an equidigital number, since it uses as much as digits as its factorization.

43276420881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006248 (or 1006233 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 43276420881 in words is "forty-three billion, two hundred seventy-six million, four hundred twenty thousand, eight hundred eighty-one".