53197928784 has 540 divisors, whose sum is σ = 205048977588. Its totient is φ = 12752087040.

The previous prime is 53197928767. The next prime is 53197928843. The reversal of 53197928784 is 48782979135.

53197928784 is a `hidden beast` number, since 531 + 9 + 7 + 9 + 28 + 78 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 27051038784 + 26146890000 = 164472^2 + 161700^2 .

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 11096692 + ... + 11101484.

Almost surely, 2^53197928784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53197928784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102524488794).

53197928784 is an abundant number, since it is smaller than the sum of its proper divisors (151851048804).

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

53197928784 is a wasteful number, since it uses less digits than its factorization.

53197928784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4856 (or 4829 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The spelling of 53197928784 in words is "fifty-three billion, one hundred ninety-seven million, nine hundred twenty-eight thousand, seven hundred eighty-four".