20798841460 has 24 divisors (see below), whose sum is σ = 43970711400. Its totient is φ = 8263699584.

The previous prime is 20798841443. The next prime is 20798841523. The reversal of 20798841460 is 6414889702.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2009011684 + 18789829776 = 44822^2 + 137076^2 .

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, 3486759 + ... + 3492718.

It is an arithmetic number, because the mean of its divisors is an integer number (1832112975).

Almost surely, 2^20798841460 is an apocalyptic number.

20798841460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20798841460 is an abundant number, since it is smaller than the sum of its proper divisors (23171869940).

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

20798841460 is a wasteful number, since it uses less digits than its factorization.

20798841460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6979635 (or 6979633 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 20798841460 in words is "twenty billion, seven hundred ninety-eight million, eight hundred forty-one thousand, four hundred sixty".