21352050455044 has 48 divisors (see below), whose sum is σ = 39050391840768. Its totient is φ = 10205404882848.

The previous prime is 21352050455011. The next prime is 21352050455059. The reversal of 21352050455044 is 44055405025312.

It is a junction number, because it is equal to n+sod(n) for n = 21352050454988 and 21352050455006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225358809 + ... + 225453535.

It is an arithmetic number, because the mean of its divisors is an integer number (813549830016).

Almost surely, 2^{21352050455044} is an apocalyptic number.

It is an amenable number.

21352050455044 is a deficient number, since it is larger than the sum of its proper divisors (17698341385724).

21352050455044 is a wasteful number, since it uses less digits than its factorization.

21352050455044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122704 (or 122702 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 40.

The spelling of 21352050455044 in words is "twenty-one trillion, three hundred fifty-two billion, fifty million, four hundred fifty-five thousand, forty-four".