20794261488 has 160 divisors (see below), whose sum is σ = 72125716992. Its totient is φ = 4985625600.

The previous prime is 20794261483. The next prime is 20794261507. The reversal of 20794261488 is 88416249702.

It is a self number, because there is not a number n which added to its sum of digits gives 20794261488.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20794261483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168343 + ... + 264438.

Almost surely, 2^20794261488 is an apocalyptic number.

20794261488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20794261488 is an abundant number, since it is smaller than the sum of its proper divisors (51331455504).

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

20794261488 is a wasteful number, since it uses less digits than its factorization.

20794261488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432823 (or 432817 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

It can be divided in two parts, 20794 and 261488, that added together give a palindrome (282282).

The spelling of 20794261488 in words is "twenty billion, seven hundred ninety-four million, two hundred sixty-one thousand, four hundred eighty-eight".