20963249848 has 96 divisors (see below), whose sum is σ = 43015840560. Its totient is φ = 9540577280.

The previous prime is 20963249809. The next prime is 20963249863. The reversal of 20963249848 is 84894236902.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140692878 + ... + 140693026.

Almost surely, 2^20963249848 is an apocalyptic number.

It is an amenable number.

20963249848 is an abundant number, since it is smaller than the sum of its proper divisors (22052590712).

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

20963249848 is a wasteful number, since it uses less digits than its factorization.

20963249848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 55.

The spelling of 20963249848 in words is "twenty billion, nine hundred sixty-three million, two hundred forty-nine thousand, eight hundred forty-eight".