21741147090347 has 8 divisors (see below), whose sum is σ = 22029314065920. Its totient is φ = 21453604530280.

The previous prime is 21741147090269. The next prime is 21741147090391. The reversal of 21741147090347 is 74309074114712.

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-21741147090347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21741147090295 and 21741147090304.

It is not an unprimeable number, because it can be changed into a prime (21741147092347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156033779 + ... + 156173052.

It is an arithmetic number, because the mean of its divisors is an integer number (2753664258240).

Almost surely, 2^{21741147090347} is an apocalyptic number.

21741147090347 is a deficient number, since it is larger than the sum of its proper divisors (288166975573).

21741147090347 is an equidigital number, since it uses as much as digits as its factorization.

21741147090347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312207753.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 21741147090347 in words is "twenty-one trillion, seven hundred forty-one billion, one hundred forty-seven million, ninety thousand, three hundred forty-seven".