53621789712 has 80 divisors (see below), whose sum is σ = 143156170752. Its totient is φ = 17277425280.

The previous prime is 53621789677. The next prime is 53621789719. The reversal of 53621789712 is 21798712635.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (53621789719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1299543 + ... + 1340169.

Almost surely, 2^53621789712 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 53621789712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71578085376).

53621789712 is an abundant number, since it is smaller than the sum of its proper divisors (89534381040).

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

53621789712 is a wasteful number, since it uses less digits than its factorization.

53621789712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41556 (or 41550 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 51.

The spelling of 53621789712 in words is "fifty-three billion, six hundred twenty-one million, seven hundred eighty-nine thousand, seven hundred twelve".