20794299456 has 56 divisors (see below), whose sum is σ = 62878004800. Its totient is φ = 5941228032.

The previous prime is 20794299391. The next prime is 20794299473. The reversal of 20794299456 is 65499249702.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 20794299396 and 20794299405.

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, 7734631 + ... + 7737318.

Almost surely, 2^20794299456 is an apocalyptic number.

It is an amenable number.

20794299456 is an abundant number, since it is smaller than the sum of its proper divisors (42083705344).

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

20794299456 is a wasteful number, since it uses less digits than its factorization.

20794299456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15471971 (or 15471961 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 20794299456 in words is "twenty billion, seven hundred ninety-four million, two hundred ninety-nine thousand, four hundred fifty-six".