20968928862 has 32 divisors (see below), whose sum is σ = 47961312000. Its totient is φ = 5987081088.

The previous prime is 20968928821. The next prime is 20968928863. The reversal of 20968928862 is 26882986902.

It is a junction number, because it is equal to n+sod(n) for n = 20968928796 and 20968928805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20968928863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105112 + ... + 230187.

It is an arithmetic number, because the mean of its divisors is an integer number (1498791000).

Almost surely, 2^20968928862 is an apocalyptic number.

20968928862 is an abundant number, since it is smaller than the sum of its proper divisors (26992383138).

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

20968928862 is a wasteful number, since it uses less digits than its factorization.

20968928862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336800.

The product of its (nonzero) digits is 11943936, while the sum is 60.

The spelling of 20968928862 in words is "twenty billion, nine hundred sixty-eight million, nine hundred twenty-eight thousand, eight hundred sixty-two".