20869207948 has 12 divisors (see below), whose sum is σ = 36533216160. Its totient is φ = 10431146192.

The previous prime is 20869207903. The next prime is 20869207949. The reversal of 20869207948 is 84970296802.

It is not an unprimeable number, because it can be changed into a prime (20869207949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850843 + ... + 875026.

It is an arithmetic number, because the mean of its divisors is an integer number (3044434680).

Almost surely, 2^20869207948 is an apocalyptic number.

It is an amenable number.

20869207948 is a deficient number, since it is larger than the sum of its proper divisors (15664008212).

20869207948 is a wasteful number, since it uses less digits than its factorization.

20869207948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728896 (or 1728894 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 20869207948 in words is "twenty billion, eight hundred sixty-nine million, two hundred seven thousand, nine hundred forty-eight".