20852813673705 has 32 divisors (see below), whose sum is σ = 35970100266240. Its totient is φ = 10254829651200.

The previous prime is 20852813673683. The next prime is 20852813673773. The reversal of 20852813673705 is 50737631825802.

It is not a de Polignac number, because 20852813673705 - 2⁷ = 20852813673577 is a prime.

It is a super-2 number, since 2×20852813673705² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58002246 + ... + 58360655.

It is an arithmetic number, because the mean of its divisors is an integer number (1124065633320).

Almost surely, 2^{20852813673705} is an apocalyptic number.

It is an amenable number.

20852813673705 is a deficient number, since it is larger than the sum of its proper divisors (15117286592535).

20852813673705 is a wasteful number, since it uses less digits than its factorization.

20852813673705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116363841.

The product of its (nonzero) digits is 16934400, while the sum is 57.

The spelling of 20852813673705 in words is "twenty trillion, eight hundred fifty-two billion, eight hundred thirteen million, six hundred seventy-three thousand, seven hundred five".