21741545442604 has 24 divisors (see below), whose sum is σ = 40974801659568. Its totient is φ = 10034473565760.

The previous prime is 21741545442599. The next prime is 21741545442637. The reversal of 21741545442604 is 40624454514712.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4560774 + ... + 8017714.

It is an arithmetic number, because the mean of its divisors is an integer number (1707283402482).

Almost surely, 2^{21741545442604} is an apocalyptic number.

It is an amenable number.

21741545442604 is a deficient number, since it is larger than the sum of its proper divisors (19233256216964).

21741545442604 is a wasteful number, since it uses less digits than its factorization.

21741545442604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3577905 (or 3577903 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 49.

The spelling of 21741545442604 in words is "twenty-one trillion, seven hundred forty-one billion, five hundred forty-five million, four hundred forty-two thousand, six hundred four".