53447727616 has 80 divisors (see below), whose sum is σ = 110075061888. Its totient is φ = 25914470400.

The previous prime is 53447727607. The next prime is 53447727629. The reversal of 53447727616 is 61672774435.

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, 2205421 + ... + 2229523.

Almost surely, 2^53447727616 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 53447727616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55037530944).

53447727616 is an abundant number, since it is smaller than the sum of its proper divisors (56627334272).

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

53447727616 is an equidigital number, since it uses as much as digits as its factorization.

53447727616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24253 (or 24237 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 52.

The spelling of 53447727616 in words is "fifty-three billion, four hundred forty-seven million, seven hundred twenty-seven thousand, six hundred sixteen".