21789458375070 has 32 divisors (see below), whose sum is σ = 53570180593440. Its totient is φ = 5668802178560.

The previous prime is 21789458375063. The next prime is 21789458375177. The reversal of 21789458375070 is 7057385498712.

It is a junction number, because it is equal to n+sod(n) for n = 21789458374992 and 21789458375010.

It is a congruent number.

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, 8857502175 + ... + 8857504634.

It is an arithmetic number, because the mean of its divisors is an integer number (1674068143545).

Almost surely, 2^{21789458375070} is an apocalyptic number.

21789458375070 is an abundant number, since it is smaller than the sum of its proper divisors (31780722218370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21789458375070 is a wasteful number, since it uses less digits than its factorization.

21789458375070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17715006860.

The product of its (nonzero) digits is 118540800, while the sum is 66.

The spelling of 21789458375070 in words is "twenty-one trillion, seven hundred eighty-nine billion, four hundred fifty-eight million, three hundred seventy-five thousand, seventy".