43641253502061 has 8 divisors (see below), whose sum is σ = 58191033366240. Its totient is φ = 29092821319632.

The previous prime is 43641253502003. The next prime is 43641253502137. The reversal of 43641253502061 is 16020535214634.

43641253502061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43641253502061 - 2⁷ = 43641253501933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43641253502761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336844875 + ... + 336974408.

It is an arithmetic number, because the mean of its divisors is an integer number (7273879170780).

Almost surely, 2^{43641253502061} is an apocalyptic number.

It is an amenable number.

43641253502061 is a deficient number, since it is larger than the sum of its proper divisors (14549779864179).

43641253502061 is a wasteful number, since it uses less digits than its factorization.

43641253502061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673840875.

The product of its (nonzero) digits is 518400, while the sum is 42.

Adding to 43641253502061 its reverse (16020535214634), we get a palindrome (59661788716695).

The spelling of 43641253502061 in words is "forty-three trillion, six hundred forty-one billion, two hundred fifty-three million, five hundred two thousand, sixty-one".