20843101448 has 32 divisors (see below), whose sum is σ = 43113553560. Its totient is φ = 9385259520.

The previous prime is 20843101393. The next prime is 20843101457. The reversal of 20843101448 is 84410134802.

It can be written as a sum of positive squares in 4 ways, for example, as 13655792164 + 7187309284 = 116858^2 + 84778^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2439815 + ... + 2448342.

Almost surely, 2^20843101448 is an apocalyptic number.

It is an amenable number.

20843101448 is an abundant number, since it is smaller than the sum of its proper divisors (22270452112).

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

20843101448 is a wasteful number, since it uses less digits than its factorization.

20843101448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4888217 (or 4888213 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The spelling of 20843101448 in words is "twenty billion, eight hundred forty-three million, one hundred one thousand, four hundred forty-eight".