20873356248 has 32 divisors (see below), whose sum is σ = 53038859760. Its totient is φ = 6843722880.

The previous prime is 20873356237. The next prime is 20873356307. The reversal of 20873356248 is 84265337802.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20873356197 and 20873356206.

It is a congruent number.

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, 7127415 + ... + 7130342.

Almost surely, 2^20873356248 is an apocalyptic number.

It is an amenable number.

20873356248 is an abundant number, since it is smaller than the sum of its proper divisors (32165503512).

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

20873356248 is a wasteful number, since it uses less digits than its factorization.

20873356248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14257827 (or 14257823 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 20873356248 in words is "twenty billion, eight hundred seventy-three million, three hundred fifty-six thousand, two hundred forty-eight".