21375061504741 has 8 divisors (see below), whose sum is σ = 25088875280000. Its totient is φ = 17826306119568.

The previous prime is 21375061504711. The next prime is 21375061504747. The reversal of 21375061504741 is 14740516057312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21375061504741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21375061504691 and 21375061504700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21375061504747) 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, 41264597241 + ... + 41264597758.

It is an arithmetic number, because the mean of its divisors is an integer number (3136109410000).

Almost surely, 2^{21375061504741} is an apocalyptic number.

It is an amenable number.

21375061504741 is a deficient number, since it is larger than the sum of its proper divisors (3713813775259).

21375061504741 is an equidigital number, since it uses as much as digits as its factorization.

21375061504741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82529195043.

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 21375061504741 in words is "twenty-one trillion, three hundred seventy-five billion, sixty-one million, five hundred four thousand, seven hundred forty-one".