20853803962 has 16 divisors (see below), whose sum is σ = 31495464000. Its totient is φ = 10355349600.

The previous prime is 20853803941. The next prime is 20853803969. The reversal of 20853803962 is 26930835802.

It is a super-2 number, since 2×20853803962² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20853803969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2320614 + ... + 2329582.

It is an arithmetic number, because the mean of its divisors is an integer number (1968466500).

Almost surely, 2^20853803962 is an apocalyptic number.

20853803962 is a deficient number, since it is larger than the sum of its proper divisors (10641660038).

20853803962 is a wasteful number, since it uses less digits than its factorization.

20853803962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16821.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 20853803962 in words is "twenty billion, eight hundred fifty-three million, eight hundred three thousand, nine hundred sixty-two".