20483878747392 has 108 divisors (see below), whose sum is σ = 59359870910340. Its totient is φ = 6793299738624.

The previous prime is 20483878747349. The next prime is 20483878747393. The reversal of 20483878747392 is 29374787838402.

It is a happy number.

20483878747392 is a `hidden beast` number, since 2 + 0 + 4 + 83 + 8 + 78 + 7 + 473 + 9 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18374459463936 + 2109419283456 = 4286544^2 + 1452384^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 20483878747392.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20483878747393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22111017 + ... + 23018792.

It is an arithmetic number, because the mean of its divisors is an integer number (549628434355).

Almost surely, 2^{20483878747392} is an apocalyptic number.

It is an amenable number.

20483878747392 is an abundant number, since it is smaller than the sum of its proper divisors (38875992162948).

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

20483878747392 is a wasteful number, since it uses less digits than its factorization.

20483878747392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45130028 (or 45130011 counting only the distinct ones).

The product of its (nonzero) digits is 910393344, while the sum is 72.

The spelling of 20483878747392 in words is "twenty trillion, four hundred eighty-three billion, eight hundred seventy-eight million, seven hundred forty-seven thousand, three hundred ninety-two".